Accuracy absolutely matters! The whole point of a watch is to accurately measure time.

If accuracy isn't that important then just use a sundial during the day and a candle clock at night.

Accuracy is all about tolerance, how much you can you tolerate your watch accuracy. My £60 Seiko loses 35 seconds a day, I could regulate it but am willing to tolerate it rather than open that case back. If I purchase a brand new Rolex OP and it was 35 seconds a day slow, I wouldn’t be happy. I do seem to link how important accuracy is with cost of the watch :-)

Personally, as long as my watches are close, I’m happy. I change watches daily, so it doesn’t matter that much. Great video Guy. 👍🏻

For all practical purposes, unless you are running for a commuter train, +/- 60sec a day will not make that much of a difference in your life. That said, the accuracy of any instrument used to measure any quantity is critical. If a manufacturer states their products should function within a certain range, then they need to be held to that standard or they are not a reliable manufacturer. In addition accuracy of any measuring device is an indication of its true quality, value, and usefulness. You are correct.

I really enjoyed this video. My concerns with accuracy is twofold. First I agree with you that a watch should live up to the stated marketing. If it is performing within those metrics then one really can’t complain. My watch habits are such that I wear a watch in my collection for about 5 days when it is up for rotation. I might wear it for 7 days depending upon what I’m doing during the weekend when I will often switch it out for a beater. Given this cycle I prefer my watches to keep accuracy within a minute over the 5 days. This way my watch is reading the correct time as indicated by the minute hand and I don’t need to adjust it during the rotation. This means I’d like it to be accurate plus or minus 12 seconds a day. Having said that, if as I said above the watch is advertised to perform even better, I expect it to do so Now a question. I have a watch that will perform different across several days. I assume this is due the what positions it is in during those days. I’d like to get a time grapher to help me analyze this. Any recommendations for a device that is good but won’t break the bank. Thanks and keep it up

For mechanical watches no; they're never going to be anywhere near accurate as a $10 Casio. There's something to be enjoyed with chasing that dragon though, and that goes for high accuracy quartz too. I would love a Quartz Grand Seiko

Very interesting. I was one of those people concerned about accuracy as I have Breitlings with their COSC and an Omega with its METAS. When the Omega was running -1 in spite of its 0 advertisements I was worked up till I learned about cumulative error and just put it in a fast position for the night. I’m much more chill now!

On my Rolex it does upset me when it’s more/les than +-2sec a day but if my seiko is -+ 15 sec a day I don’t get bothered

Believe it or not I just had a guy comment how he finds one second a day terrible accuracy 😂😂. I had to tell him that he should just give up on watches. I totally agree about the marketed accuracy needing to be as described!! It's like saying, it's 200m-ish water resistant. Would these same people say it's ok for a divers watch that states 200m be close to that but not necessarily exactly that water resistant

For me accuracy is part of the hobby: I practised with Seiko 5 to how accurate they can actually be, and it is surprising and enjoyable after dedicating part of your free time getting to know these mechanical marvels accomplishing the small triumph of getting as accurate as possible. And they can very accurate. I also do it with 2824, 2836, 7750, etc. (My Hamilton Khaki Chrono is at +1 spy after regulation and with my normal pattern of wear). It is just fun.

Second that. I only wear watches over weeks, when they operate within COSC standards. I can't stand to correct the time every day. But i've decided to see this more relaxed. Because the problem ist: The need for accuracy can lower your enjoyment of the watch. Some watches should be more accurate than others. So perhaps we should ask: How important is accuracy for what type of watch? Ig i don't want to see a vintage Omega Constellation on my wrist which gains more then 5 sec a day. But i will tolerate this in case of a big Flieger with a poljot inside or a Seiko 5.

I voted that I`m concern about the accuracy. But now video is talking only about +-2 sek in Rolex. If the pole would have 1 more option (+20sek) I will choose that option. But I understand that someone can be dissapointed about the movement in Rolex which do not keep the guaranteed + or - 2sek.

One of my watches is an omega seamaster 300. It had not been serviced in about 10 years and was losing 20 seconds a day. Doesn't sound much does it. Well in just 9 days I'll lose 3 minutes. Adds up doesn't it. But my main concern was constantly unscrewing and screwing down the crown roughly once a week to adjust the time. And when necessary (date changing). 6 months of this and the thread in the crown was stripped. Off to omega for repair. When I got it back it was within 10 -11 seconds a day. Again unscrewing and screwing down the crown roughly every 3 weeks for two years and yep thread in the crown stripped again. Now on the omega forums I have read a lot of people complaining of crown problems in this model so maybe it's a poor design in this particular model but my main issue with (accuracy) is with the constant having to screw and unscrew the crown. All my 3 watches an omega a breitling and a Rolex have screwdown crowns because I want my watches to be waterproof /dustproof. To me these are very expensive watches and costly to repair so accuracy I think is important. All the best to all you watch nerds out there. Happy new year all the best for 2019.

I am with you in the topic of movement accuracy. Thanks for doing this video.

Outstanding ! Fully agree with all your comments and understanding about the accuracy subject . Respect is the key for a meaningful communication ! As a long time watch collector and enthusiast, you learn that the best watch sometimes is not the more expensive nor accurate one , but the one that most please you and bring some kind of meaning when you wore it on the wrist . Thanks 👍

My Citizen Promaster was earning a day +18 seconds. I decided to regulate it. has been on the wrist for 48 hours and +2 seconds, this for me is perfect because I value a lot Accuracy on a clock.

I think it matters to me, I'm bummed out if something is more than 10 seconds a day off, I have a few cheaper autos (Seiko and Citizen Signature) both are less than 10 seconds a day, the other watches I have are a lot more expensive and noted for there accurracy so would expect them to be better, I think I still have a watch of my fathers and one of my grandfathers, both I suspect are not that accurate but I don't wear either of them to know, agree with you Guy, if you are spending a lot of money then they should fit within that limit.

I just finished regulating my one month old Invicta ProDiver with an NH35A. It’s been consistent at about four or five seconds slow a day and it drove me nuts. I got it to within 2.5 to 5 seconds fast a day now according to my time grapher app. It took me an hour but another thing to consider is position variance, when I put the watch flat on a table with the crystal facing the ceiling it usually holds or gains a couple of seconds overnight. During the day is when I seem to lose the four or five seconds probably because your arm is in the down position and the balance wheel has to fight gravity. So I’m hoping that now the extra few seconds faster will compensate for the slow down during the day and I hope I’ll break even.

Would you agree with me that an automatic watch will keep better time accuracy if the user wears it and is more active such as going walking regularly instead of wearing it and sitting in watching tv.

For me,the accuracy is absolutely a must.That's why i gave up of all my automatic watches and i am wearing now only one Casio from 5600 series

Came to see Seiko army in action, wasn't disappointed

I have a 2020 Aqua Terra that's about plus 8 secs per day and a Tudor that's no more than about minus 2 ...The Tudor was about £2K less and that bugs the crap out of me

When a watch costs thousands of dollars it matters more than anything else to me. Anything more than 5 seconds plus or minus a day is unacceptable in my opinion. Little details matter in every aspect of design,finish and function where thousands of dollars are being spent. Servicing is expensive too it has to be a priority. I like your views and opinions Guy,very well balanced and sensible.

Actually many old watches had -/+60s per day rated accuracy. Like today, most of them did better anyway. To be honest, as long as the drift is consistent, you get to know your watch enough that you’ll always know fairly accurate time even if the watch is not that accurate

Great video and I totally agree. I change watches every couple of days and find that while I do like my watches to be accurate, when I change I’m usually resetting so it is no big deal. Keep up the good work. Love your site.

Superb topic and understand of human psychology. I think you need to mention the size of the poll, so we can judge the accuracy of your results. Also don’t forget that it’s likely most of your subscribers have something in common; which will bias your poll. Totally agree with you re those who jump on others with crass responses. They are basically taking what the posters said to heart and feel threatened in a some way. We all have insecurities after all. Very nice video - keep them up. Regards Sam

Guy, u rock! Im with u 100%. I"ll never understand how ANYONE would b satisfied with +/- 60 secs/day! The majority of my collection r Chronometers (COSC) & I simply will NEVER accept any more than +/- 5 secs/day. I have sent Rolex"s back that were off by 4 or 5 secs/day...UNACCEPTABLE! (but hey, thats me) & yes patina is DAMAGE! I think ppl who call it "desirable" just want to sell their old watch, LOL!

The degree of accuracy should correlate to the price of the watch. Also, I would never buy a watch that is below what the best movements in that pricerange offer in term of accuracy. So I would always consider the quality of the movement (and accuracy) first, regardless of price or design.

Funny enough I know a guy on here that doesn't even measure his watches accuracy. I really enjoy my accuracy on my luxury watches but on my beaters I'm not too worried about it. Rolex has been calling watches Superlative Chronometers for so long that they didn't used to be +2/-2. I think it used to be +6/-4. Either way. Great video. Lots of good insight here. Keep it up.

Hi Guy, Very interesting topic. I noticed that not many people are talking about it. Even the manufacturers ( with some exceptions) are very shy about the subject. My opinion is that very much depends on how do one looks at the watch: if you see it more as piece of jewelry, then you don't really care about accuracy. If you see it as a tool - yes, you care. I do care. Very much. That's why my love/hate relationship with Seiko. I like my Turtle and I would wear it more but ... -20 seconds / day ... is driving me crazy. This holds me back from buying some other models I like. I had it regulated ( at the watchmaker) and lasted a couple of days!! Then again -20. I rather wear my Atlantic ( +12 seconds/day) . And the most wrist time goes to my Hydroconquest, running between +1 and +2 secs/ day. Appreciate your work, keep it up!

I can see people getting upset if product makes a claim & you are paying for that. Especially if you pay lots for that. Concerning how accurate people need thru their day in real terms is different. When I grew up wearing a watches in 60’s we never discussed accuracy to these levels. Most people worn hand winders, & checked it once a day and usually wound it then. Now if you launch missiles, or seal team attacks, or timed rocket burns, then maybe. But the Pog by Seiko worked for timing rocket burst & skylab work and it work, and was the first auto chrono in space. How accurate was Yuri’s Podeba ? Or the Strella? Came across some forums that say Omegas cal 321 is +/- 10 secs a day. I have to agree with quartz comments if accuracy is the absolute driving catagory.

I used to have an interest in Rolex. That is until a flying buddy had one that wouldn't keep time within several minutes a day. My Hamilton was much more accurate than his Rolex. He kept sending it back to Rolex for lengthy warranty visits to fix it but to no avail. On each occasion it was returned unable to keep accurate time - sometimes the condition was even worse. After several unsuccessful trips to Rolex he finally got it back with a letter which in effect told him to stop obsessing over a few minutes a day and just be happy to have a Rolex. That was pretty much it for me as far as ever wanting a Rolex and my pal later sold his and got a Breitling. Perhaps Rolex has improved their QC and attitude since then (the late 90s) but as for me I'd rather have a Timex that works.

Very solid video, Guy. I didn't vote in the survey, but I appreciate your common sense approach. So, I guess the answer to the question about accuracy is, "it depends." Price of the watch, personal preference, and circumstances all play a part. Pursue what's important to you, but allow others the same respect. 👌

My new Hamilton khaki field automatic H 10 movement is 2 sec + /- a day . Amazing . My Seiko Serb o35 is about 5 sec + / - that is great . . I'm happy . My cheap Timex expedition quartz watch is always the right time . Lol.

One week later after adjusting multiple times the speed of the 4R35 in my Seiko King Samurai (SRPE35K1), I've finally hit the "sweet spot", and now it runs with only between +-5 to 10 sec. per day!

Yet another great video, and I agree with you again. I care about accuracy and check all my (7) watches at a regular basis 😊 I own 3 mechanical Seikos with 2 being equipped with the 6r27 movement. Those are really, really accurate with the best of them doing an average of +0,5 s/d over a month. My Alpinist with the 6r15 is about +7 s/d, not so bad either. My two swiss watces is about +5-6 s/d, so all in all I'm very happy with all of them. The last two are quartz so my accuracy alibi is well covered. Thanks for taking time to make these interesting videos, I really appreciate them 👍

Great video. I’m in the 20-30sec per day limit. Well done addressing toxic trolls.

My vintage oyster perpetual (6569) from (I believe) 1968 is accurate to between +3/+5 seconds per day. For a watch of it's age I am beyond happy with that. But I would expect any watch with the superlative chronometer stamp to live up to Rolex' claims. I am currently saving the money up to get a datejust 36mm. It will be the first hight end watch I buy new. I shall be making sure that it is indeed keeping "superlative chronometer" timing. Keep the content coming Guy. I always enjoy it.

A different perspective. I saw how Seiko 5 adjustment goes smoothly and I can tell you I could do it for fun, daily. If, on the other hand, I had to do the same with my Adriatica Aviator (quartz)... I'd lose my mind! There's huge amount of looseness ony the mechanism, the hour and minute pointers diverge depending on how you move them and they SHIFT significantly when you lock the crown!

As long as my watches fall within plus or minus 60 seconds a day I care not one jot. I have high accuracy quartz and atomic clock controlled pieces if I need to know the time more precisely ( which come to think of it I never actually do). For me it’s all about the aesthetic.

I get wanting accuracy from a expensive watch as it is the novalty that it is the whole package of luxury and performance (like a sports car that has good performance and luxury interior). But for me, I do not want to exist without my Rolex for like 2 months because it is doing maybe 6 to 8 seconds a day off. I am one of those guys who wears his watch twice a week or a little more when I get home from work. But before the warranty is up, I will send it in for the full shabbang (cleaning, servicing, etc).

From a military mind set. Accuracy is very important. Its very irritating for a “high end” field watch to be almost a minute off within 3 days of setting. That’s 60 seconds too late. That’s the main reason I don’t wear mechanical watches more often, however I do own 3 mechanical Hamilton’s which I love dearly and wear for church and office stuff mostly. But if I had to give up all my watches and pick one to live off of then I would have to be a accurate and reliable quartz. Changing a battery once every few years when the watch is telling you to is far less nuanced than resetting the TIME on your TIME telling device several times a week.

I have a Seiko presage, The fact respects are minus 35 to + 45 I'm running minus 32 seconds a day, on the watch forums many people say they have much better timings but it's still pretty bad for a 400 pound watch though it looks unbelievably pretty. I have to say I don't really mind because I think it makes a difference if you only have one watch like myself within the time loss is a sort of quirkiness that I quite like correcting the time is kind of fun I have hacking which is a bonus. I want when I was younger had a really cheap manual watch It was like some Eastern European fashion model and it used lose all gain about 3 minutes a day I wore it for ages because it was such fun I could throw do calculations what the real time was because it was stable.

I am pretty late to your channel. Love the content. I have an Orient Esteem gen 2 with F6T22 movement. It turned out to run 1 minute fast per day at the first day I bought it. Initially I was so worried and confused. I brought it to a watch repairer nearby to have it regulated. One week later, it seemd to run well, accuracy was no longer a big deal. Then, 2-3 weeks later, it started to run 1 minute fast again per day. I got so bored and I decided to let it just perform whatever. 1 year past, still 1 minute fast a day, but I no longer care much about that. I know that I did not pay much for a watch, so I can't ask for too much things. On top of that, I realize that buying that watch was because I really loved the machenical movement. Hence, I enjoy the feeling of wearing something working machenically great. In case I am in a hurry and need much accuracy, I also have a Casio in the collection to simply grab it and go.

I think the accuracy is important for all maniacals like me lol

I have a newbie question. My watch is losing around 3 sec per day. Is a cosc certified -4/+6. The thing is just losing time. It is normal not to gain at all? I mean I should expect suddenly to start gaining too? I am asking because hearing all this stuff with +-, in my mind its translates like today loses tomorrow gaining. Or I am wrong?

The Ball personal Watch was designed on the purpose of having the most accurate time as possible based on importants of safety when safety relies on time.

You have just nailed it thankyou.I wear a quartz as a daily beater but use an auto for an occasional piece.Best of both worlds ?Yes I do like accuracy but for short term enjoyment as you mention a few seconds are neither here or there.Great topic.Cheers ,Len.Uk

My Seiko quartz from 1978 gains a few seconds a month. I wonder if I could stand a mechanical movement. I guess I won't know unless I get one. Rolex on the wrist in a 24 hour period? Does that mean you sleep with it on the wrist? Is the watch regulated to six positions or does that not apply here?

Please make a video with a list of what is reasonable accuracy within a price range. For example in a price range 0-100$ acurracy of X seconds in ok, and here are some examples - A,B,C in a price range 100-300$ accuracy of Y seconds is expected, and here are some examples - DEF Up to 500 $ ? Up to 1000$ ? Can't seem to find any clear information. Most forums/blogs argue with one another. And with wide margins. Of course with some watches you're paying for water resistance or the case material instead of accuracy, but what are the average numbers we can set as a start point when looking for a watch.

If you wear a different watch every few days or only wear a watch for a week or even just for an evening... you aren't going to care very much how accurate it is... just check it/ set it each time you put it on. I wear the same watch for months at a time and for me the set it and forget it quartz aspect is perfect for me, and the more accurate the better really. A few seconds a month accuracy would be ideal. I just don't want to add the concern of having to second guess what time it is.

Great vid guy! You're absolutely right on the point you made about a certificate a company issues about their product regarding quality or performance matter which product, but specially in watches. I still don't get how GS or even Bulova with their high frequency quartz watches do not rely on this for more agressive advertisement and product placement. You should make a video regarding those movements as well someday. Great content keep it up!!!

Gives the watch companies something to work to. I like mine to be a little fast and hack. Seiko non hacking movements that don't hack are not in my collection. Easy to set and you are never late. My most accurate new watches are Seagull Ocean Star and Orient Bambino V4. +10 on both. I am looking for a Vostok Precision vintage watch now. Something to look at. There is a glass caseback for the Vostok Precision too. A good original one is hard to find. But it's fun searching. Yes Accuracy is important to me. However my Citizen Eco Drive is boringly in synch with my radio controlled wall clock but I don't wear it much. But that's what ordinary non watch enthusiasts should buy.

I know some professional watchmakers. What I’ve been told is that certifications like COSC or even water resistance only means that the watch met the standard AT THE TIME OF TESTING. It’s not a guarantee that the watch will perform that way over the course of its life and in fact it’s impossible as parts and lubricants wear out. So it’s a bit of a marketing ploy. Rolex will try to readjust the watch but if they can’t then they arent too stressed. I think a greater concern would be more about their reputation than the performance of the watch. Hence the experience of another commenter and his letter from Rolex essentially saying; get over it. So if you have two identical watches, one expensive COSC and the other not but cheaper, choose the latter and then ask for them to regulate it to COSC standards during a service. Same thing, don’t pay the premium of COSC. That being said companies like Rolex do try to create movements that minimize deviation so it happens less often and to a lesser degree.

I wonder if it comes down to the granularity of the time displayed? If you had one of those one hand watches where you can only read the hour to the nearest 5 minutes it would eliminate fretting about minutes or seconds and likewise if you had a watch that went beyond seconds and could show fractions of a second for split second timing then you could appreciate that level of accuracy. Perhaps high beat rate watches need split second indicators to show their true capabilities? I appreciate accuracy despite not needing to because I change watches so often. The reason I appreciate it is because if I decide to wear one watch for a year straight I would appreciate not having to reset the time except twice a year for daylight savings and I even have quartz watches that do that for me! Awesome.

In my opinion, for any urban living person, commuting by a public transportation or by a car, who's job also involves at least couple of meetings or conference calls per week, a high watch accuracy is extremely important. As first, the watch should never cumulatively run late per day in order to reliably not miss a specific scheduled train, tram, or a bus, which extends also not to be late at meeting. Now, the question remains in which rate cumulatively should the watch be allowed to run fast per day (note that the watch may run slow sometimes during the day, but it should never accumulate net loss during the whole day)? Here the problem would be how often the watch should be set again backwards to the correct time, which is annoying, and doing that each single day would for most of people not be acceptable. The poll from this video says that being fast 60 seconds a day is not acceptable by 60% of people. If you have your watch set couple of minutes forward, it may also cause scheduling problems and daily routine inefficiencies. I believe majority of working people would not like to set their watch back to correct time during working days because of tight daily schedules, but the weekend is a good oportunity to set the watch to the correct time. Therefore, as a minimum of time keeping accuracy, I would say that we can define it as up to +8.57 seconds per day, which makes the watch run a minute fast every 7 days. Nevertheless, I believe significant percentage of people may forget to set their watches to correct time during the weekend, and for sure even better accuracy is required than +8.57 seconds per day. But, we are aware that for commercially available mechanical watches it is not possible to be accurate e.g. as only a second per month as seen with good quartz watches, thus we need to set some reasonable accuracy limit. Since most of the watches have an additional simple date function, which needs to checked once per month if maybe we were in the 30 day long month, we need to check if we need to manually set it to the 1st day which would also be a good opportunity to set the watch to the correct time. Therefore, we could define that sufficient timekeeping accuracy for a wrist watch would be in average of up to +2 seconds per day, making a watch run fast one minute every 30 days. In practical terms, this accuracy could only be conditionally offered by a Rolex brand in case buyer is lucky that his watch sample can run in resting position forward up to +2 seconds per day on average, and not to lose time on average when worn. As a second example, Omega Master Chronometer watch models are regulated never to run cumulatively late, but average rates can practically be up to +5 seconds per day, which could maybe be addressed by finding a "slow" resting position of the watch to leave running during the night which runs at up to +2 seconds per day.

Yes it does. My dads wind omega from the 60s. Is within 2 minutes a month. Gets a wind every morning.

So for me, it does depend on the watch, My Seiko 5... I couldn't care less as long as it not too excessive i.e. less than 30 seconds per day. However I have a Rolex COSC Deep Sea Seadweller that was losing 5 second per day under warranty. Rolex Service Center regulated the watch and now after 29 days, timed with web site Time.is now has lost less than one second over the entire 29 days. This is unbelievable, but if a Rolex can regulate this well, then why wouldn't you want it to perform just to their COSC spec? The COSC Rolex spec of +/- 2 seconds a day or a bit worse would be fine, but I cannot believe how much better they were able to regulate my watch.

Just put my Ball on the Timegrapher and it’s running +1 , amplitude of 330, beat error at .1 ms love this watch! ( Sold all my Seiko 6R15 based watches due to crappy inconsistent accuracy , an SBDC051, An SBDC063 and an Alpinist , however my SRPA21 Turtle with 4 R36 is quite accurate to my surprise! Great Vid Guy!

Great video and discussion points. Most watchmakers who work on watches will state that with modern manufacturing techniques that most intermediate to high end watches are capable of running at chronometer specifications and there isn't any real excuse that they shouldn't. I know there are folks who don't care about accuracy and it seems like those are people with big collections so they have to set a watch whenever they put one on. I'm probably going on a rant here, but I'm starting to form the opinion that most high end watches are more about snobbery and some brands (and their owners) are particularly worse offenders than others. Also, some brands may use selling points about how well honed the manufacture of their gear teeth are or the particular features of the watch enhance accuracy. Yet the watches they sell aren't necessarily regulated to near chronometer specifications. This has to some extent ticked me off with respect to higher brands and is a bit off putting for me with respect to mechanical watches in general. What is the point of high horology, when they are forgetting about the horology part of the equation? I've also seen a lot of watch snobbery towards the use of silicon as if it is some grand watchmaking sin to use silicon in any part of a watch. Gasp, oh my, even considering silicon for the balance spring? What are you thinking? To be perfectly honest, high horology doesn't appear come with a guarantee of accuracy and the current trends seem to be that a lot of people chasing those exclusive brands seem to care less about accuracy. I'm actually kind of fed up with collecting because of this and I'm not sure if I will keep any of my higher end pieces. It's almost to the point where I have considered just keeping my GS spring drive or chucking that also and getting a Citizen Chronomaster that would probably require less maintenance and just wearing that. I would have my accuracy and no worries or costs associated with regular servicing. It would also break the cycle of chasing the dragon for the next best watch that promises, but fails to deliver.

I like my mechanical watches to be fairly accurate but I do tend to change them out daily to match my attire, so I'm more concerned with it being easy to set. This is why I prefer no-date 3-hand watches.

I think most loud people on forums arguing against accuracy are either trolls or irrational stans who just can't tolerate any questioning of their favorite brand whatsoever. If you're using a watch as......a watch.....then there is absolutely no reason you shouldn't want it to be as accurate as possible. If you're using it more as a jewelry / fashion / collectible item, then I guess it doesn't matter as much, but I am definitely not in that category.

A mechanical watch being able to accurately keep time is what actually drew me to watches in the first place because It’s just so impressive. I know these standards are quite high but if I were to buy a watch and it gained it lost more than 7 or 8 seconds per day, I’m going to be a little bit disappointed. However if it’s 20, 30, 40 seconds per day, I’m just not going to get nearly as much enjoyment out of it as I get from my other watches. Right now I have three watches in my collection and they are -3, -2 and +2. Accuracy is definitely something that matters to me.

Accuracy does matter. I like Chronometers and I am paying more for that ability. The logic that it doesn't matter isn't logical.

I could not agree with you more. You nailed it in every sentence. Thank you.

I appreciate accuracy because (1) I enjoy the the lengths designers have to go to so that such a tiny mechanism can be accurate and (2) so I don’t have to reset the time as often.

I agree I don't like patina either but I want my watch to be accurate no matter what it is because there are so many accurate water resistant quartz watches out there for under 50 bucks.

That's exactly the rude criticism and sardonic answers I received upon "watch u seek " forum from asking to have explained to me about whether gain of seconds upon my damasko Dsub2 eg 5 secs per day was to be expected consecutively or should it only remain about 5 secs within accuracy each day... I just got people that wasn't answering the question they were stating nonsense to me also that they enjoy adjusting their watch every week and for me to get a quartz

I rarely wear the same watch two days in a row, and I would never chart the accuracy of my watches, so it's never been a matter of personal concern to me. That's not to say I would say accuracy is irrelevant or mock anyone who cares about it. A watch is a tool to measure time, so gross inaccuracy actually violates the core purpose of a watch! And, of course, if a watch doesn't meet the advertised accuracy rating, anyone who has purchased that watch has a legitimate grievance.

We'll said guy. I've made comments in posts that if I'm going to spend $10k - 15k on a watch, I should get $10k - $15k worth of accuracy. I get bashed every time. I respect your opinion. And I'm glad to know that I/we are in the majority. I have three Rolexs from vintage to brand new. The vintage keeps perfect time. The other two are +/- 1.5. I want to get into "higher end" watches but I don't want to spend more to get less accuracy. At least with Rolex I know what I'm getting.

I'm trying to get to +/- 2 seconds at most on my Samurai. I'm currently losing 12 a day.

I'm a punctual person and guess what, I used to wear a Seiko turtle as my daily beater , it's an inaccurate time piece like almost entries mechanical watches run between+/-20sec since open the box, and I haven't do any regulation as it still fell in factory spec. I always come on time and never get late for any appointments been made, because I used to turn 3 mins faster in every weekend, and I always come at least 2 ,3 mins early for all the appointments . That's means you don't need to wear an accurate Rolex or quartz watch to makes you became a punctual person if you are care for the time, all you need is a watch can shows the estimate time and that will do.

Hi Guy, I recently picked up a pre-owned Rolex Two tone Datejust 38mm which is running consistently 7 seconds fast a day. Now I know that Rolex guarantees it's new watches which are rated as a "Superlative Chronometer" to run no more than +/- 2 seconds a day. This particular watch is an excellent condition 2004 model, which the dealer who sold me the watch assured me was recently adjusted. Now for most watches, running 7 seconds fast a day is pretty good, but this IS a Rolex. Subsequently, should I be concerned that this watch is running out of spec for a Rolex, and would I be justified to return it to the dealer for adjustment?

Another superb video, Guy. Loved every “accurate” second of it 😉

I have been wearing the same watch since May. I don't want to set the time on my watch more than once a week. I would prefer every other week. I want my watch to be within 30 seconds of true time. When I set my watch I set it minus 30 seconds and I reset it when it reaches plus 30 seconds. I use WatchCheck once a day and when I am confident in rate of change I hope to drop to checking once a week.

I know watches are beautifully and fine piece of machinery but i think they are mainly( automatic watches) they are manly like jewelry unless you wearing it for some task and need accuracy, autmatic watches are about beuaty and off course should accurate as much as possible. Couole of sec a day should not be bid deal, it looks good tells time. If you are timing something to a sec dont use automatic watch use better options out there. If someone ask me what time it is shiuld be telling them 10:30 and 30 sec?

Accuracy matters to me, but what matters more to me is variance. It's one thing to get a NH35 that runs +7spd, but it is more annoying where based on the day's activity, the watch could be anywhere between -30spd to +40spd.

I have a Rolex + 1/2 per day ,Tudor - 1 per month, Steinhart +2 per day, Squale + 5 per day. Plus or minus 5 seconds per day is about my limit. Cool video.

Collectors IMO are correct because they go thru numerous time pieces, being within COS is good enough for a relatively recent Rolex or like watch. The time graph and its average has always been an approximation of actual wear accuracy when worn. The spec of +2 -2 SPD is adverting hype and can't be relied upon as gospel. Mechanical watches have always been affected by physical position and acceleration/deceleration. Advertised spec of +2 -2 SPD is a business decision. They weighed the cost of complaints and decided regulating a watch specific to the individual once in a while is a worthwhile expense. IMO having the watch regulated has its risks. First the watch was not properly sealed, moisture/water damage. Second the watch goes missing, MIA.

May be the answer to this question tells more about the person who answers than about watches. 😉 I say if you do something, you should do it as good as you can 😊 and so my watches should.

My automatics I'm ok with + or - 30 sec a day for micro brands little stricter on my seikos + or - 15 although my new seiko 5s are running at +4 and +2 my old skx only does +15. And patina is just a polite way to say beat to crap LOL Good video

My Orient Bambino generation 2 version 3 is - 15 seconds per day.

I care, so I bought a Casio Duro quartz. I did get lucky with a 'good' movement (Miyota 2115) that keeps ±0.5spm I have other quartz that run +3spm to +15spm, but I love that i can look at my Duro, with no connection (australia has no radio time) and know it's within 1 second of what the time is. It's very satisfying to me

Dang, that vocal minority are just a bunch of bullies. If someone complains that their watch isn't giving them the accuracy that they believed they were getting (based on price, movement, newness, etc) then they have every right to complain. Even if they were making ridiculous complaints (ie. expecting incredible accuracy on a vintage seiko 5 or something), there are nicer ways to explain to them that they are being unreasonable. :/

Excellent video as always. For me, precision is important but not crucial otherwise I would have a quartz watch. My two Tudors give me full satisfaction: 1 sec. / day for one and 1 sec. / week for the other. Interestingly, my Black Bay ETA is more accurate than my Black Bay COSC!

Of course accuracy matters because that is the very purpose of a watch, it's not just a piece of wrist jewellery. And I reject the stupid comments of people who say "you should get quartz". Quartz is very accurate but that's not the point - most people don't need extreme accuracy, they just need reliable accuracy! How do you define accuracy? Well, I think -2 to +4 seconds a day is what I define it as, and what's worrying is that this is more accurate than even COSC parameters. COSC parameters for automatic watches are VERY wide! I believe that ANY automatic watch should match COSC parameters, and a TRUE mechanical/automatic chronometer should be accurate to within -1 to +2 seconds a day!

Why spend thousands for a movement that does not keep good time eg cosc. Only exception would be low cost seiko etc or speedy pro. If good enough for nasa then should be for everyone else. Also very important for me the longer the service interval the better eg rolex

i think it's hilarious that anyone who is into mechanical watches would say that accuracy doesn't matter when the whole reason they're into mechanical watches is because it's a finely made precision machine that allegedly takes more craftsmanship to make than a quartz movement that came off of a mass production assembly line. if you care about it being finely made why would you not care about whether or not it finely performs the task that it fundamentally exists to do- keep reliable track of the time. it's like a car that costs twice as much as a normal car and is made of the finest materials but it gets inferior performance to a honda civic by every metric. as if, if you gave any of these people a magic button they could press that would make all mechanical watches capable of being more accurate than quartz they wouldn't press it. they're huffing copium.

The correct time is the truth. Frequency is what is, is. 6 band-solar quartz is better and automatic watches are jewelry hammered out by Blacksmiths. But they are purdy and mechanical marvels to behold. just not good enough for keeping time with any certainty. imho

I expect accuracy commiserate with the price paid. If you are paying big money then there are no excuses. Fortunately both my Rolex and Grand Seiko have been up to standard.

I don't care about my vintage obviously, My Seiko 009 isn't terribly accurate, the 775 and my glycine airmen are very accurate, so I tend to wear them more. My Datejust just came back from service, and it's very accurate, that watch is now 33 years old , My RGM isn't accurate and it's on it's way to service. I guess for me, it's about the price I paid for the piece.

Accuracy matters to me, so I bought casio quartz. A blue duro as a nice everyday diver and f105 digital for everything else. Accuracy to within 5 seconds a month from my testing

I don't like 15 seconds a day, but I try to get my watches 3 seconds a day. That makes me happy. So far I have got my Seiko 5 sport set to 3 seconds a day. I love accuracy,

Enjoyed your presentation.... fully understood as well explained... many thanks for posting the video,,

Accuracy matters in the general sense that watches are measurement devices. That being said, it's a matter of precision because measurement devices are relative to what's being measured. For example, a caliper is great for getting precise measurements down to ten thousandths of an inch... So are rulers useless then? No, because rulers are great for measuring things on a macro scale where sub-tenths accuracy is superfluous. With watches, are you measuring time over several days/months/years, or are you simply trying to make sure you're not late for a meeting? For me, it's the latter. In fact, I set my automatic watch a few minutes ahead intentionally to promote that end. I care about deviation in the sense that it helps indicate a factory defect or bad regulation from the factory.

If I can get +7 out of a $300 Glycine Airman, I should be able to get +/- 2 on a $8000 Rolex. That's not me being a bitch, that's paying for quality.

I was wondering what is considered acceptable for loosing or gaining seconds. My watch gains 12 sec a day, have to say im not very active. But im happy its considered good.. btw its a rep

Speaking of accuracy, I’m curious how accurate your Ginualts are? Do they keep the tested time provided by Ginualt while on the wrist?

Purchased several automatic Seiko and Aliexpress watches and returned them within a couple of days of realizing they are running near borderline to their -20 seconds a day. After years of collecting watches and wanting chronometer level accuracy I've decided it's either several thousand dollar watches (i.e. my Tudor Blackbay 58) or quartz (i.e. Tissot PRX quartz). I'm tired of all the hype of greatly advertised Aliexpress and Seiko 5 automatic watches only to be greatly disappointed with lack of accuracy (as if it doesn't matter). I could care less if there are opposing or even rude opinions to this post as these are my personal feelings.