Seiko 7S36 Disassembly Tutorial

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4 жыл бұрын

Hi guys thanks for watching. In this video I take you through the disassembly of a Seiko 7S36 movement. I will show you step by step each part removal to strip the movement back for cleaning. It is a relatively straightforward movement that is almost identical to a Seiko 7S26 only with a few more jewels. This is part 1 in the series. The following videos will be of the assembly. I hope its an easy step by step follow along to video.
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Пікірлер: 102

@MyRetroWatches 4 жыл бұрын

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@yorkfabco 3 жыл бұрын

i have a seiko 5 sport 7S36C that need a 3rd wheel, would it be possiable to send you it for repair. you can get me at yorkfabco@aol.com thanks and let me know either way.

@JDRichard 26 күн бұрын

Good Job. This is my next task and always good to watch someone else's disassembly for reference. Thanks from JD, fellow watchmaker

@juliemaciver9610 4 жыл бұрын

Just serviced a 6309 with the aid of your videos Mike, a real godsend on the rebuild, thank you very much for your very informative content and concise explanations.

@MyRetroWatches 4 жыл бұрын

Julie MacIver wow thank you . Love comments like these as it makes it all worth while. Knowing I have helped people with their projects is great. Thanks 🙏🏻

@robertmduckworth6566 4 жыл бұрын

Beautiful dial! Great work as usual!

@daleyurk4369 4 жыл бұрын

I really enjoyed this. I love your attitude and taking the time to explain as you go. Looking forward to reassembly! Thanks for the video.

@MyRetroWatches 4 жыл бұрын

Dale Yurk thanks Dale appreciate you taking the time to comment. Rebuild will probably be two videos but not for a few weeks as I’m off on my holiday!

@Alm64A 4 жыл бұрын

Thank you very much for sharing your teachings and your work, you have a great talent. A greeting from Spain

@adrianbirkett594 4 жыл бұрын

Thanks Mike, love the micro shots!. Adrian 🍀🍀

@giulianofiorotto3529 4 жыл бұрын

Perfect video! I'm going to fully service my first 7S26 movement this week :D

@MyRetroWatches 4 жыл бұрын

Good luck and thank you. I have done a series of videos on the 7S26 . They are in my playlist section . Might help you if you get stuck .

@JonTheComputerDoctor 4 жыл бұрын

Keep em coming.

@dineshjain6770 4 жыл бұрын

The movement of the watch is very impressive it looks very purfect

@grammarnazi7428 4 жыл бұрын

Dinesh Jain perfect*

@quinnwells9389 4 жыл бұрын

Thanks for the video man! Stripped my first movement today, 7s36. I'm putting a NH36 in my mod, and wanted to learn more about the movements. When trying to regulate the 7s36 i managed to break the hairspring. I've ordered a new one from China, but I'm predicting this is going to be a hard one to replace and regulate! Thanks for your advice, and easy to follow instructions.

@MyRetroWatches 4 жыл бұрын

Quinn Wells good luck with the hairspring. I’ve not really had much success with changing them ...

@Chulladej 10 ай бұрын

Dear Mike, just finished disassembling a 7s36b. Your video is extremely helpful. I'm just got into this rabbit hole of watches repairing and recently discovered your channel. It is an easy-to-follow instruction. Very appreciated. (Btw have same problem with the yoke spring as you show in video ha ha ..). Keep up the good work. Cheers!

@MyRetroWatches 10 ай бұрын

Great to hear thank you and good luck with your watch.

@SwedishSurvivor 4 жыл бұрын

I´am so happy I found your channel, thanks alot for a great video :)

@MyRetroWatches 4 жыл бұрын

Welcome aboard and thank you for watching.

@ianstyles9759 Жыл бұрын

I watched the two videos waiting for the post with one of this same watch, got from Ebay £32 and yes I think I have a new habit Seiko 5 watches I had one and now I have 4 and this one will be getting mods, oh I sent the hair spring screw into the quontom zone but flashlight and eyeglass 10 minutes found it under a place two countries away

@robertsymes462 4 жыл бұрын

Nice Video Mike.. you make it look so easy! I actually gasped out loud when you had your minor 'ping' moment towards the end of the disassembly! 🤣😂 up to that point it had been an almost therapeutic and relaxing watch! It's a great looking watch, this one. I love the dial and colour matched day date. Looking forward to seeing how this one turns out 👍

@MyRetroWatches 4 жыл бұрын

Thanks Rob for tuning in. Glad you liked it. Yes the keyless was left in tension . Sometimes you forget what your doing when talking at the camera 😂

@mattatthapon1461 3 жыл бұрын

This's useful video ,thanks for uploaded , Matt Thailand

@MyRetroWatches 3 жыл бұрын

Glad it was helpful!

@hammadsaeedlodhi 3 жыл бұрын

Excellent Video and great learning tutorial. i want to do the same exercise but wondering how to remember steps. what do you advise in this regard?

@hamshackleton 2 жыл бұрын

Apr 2022! Just found this vid. For info, I have a 7S36A in perfect running order, although it is stopped at the moment. The main differences are slightly different hands, and a one-way ratchet bezel around the outside of the face. I don't know if there are different face colour options, mine is silvery, matted down with a very fine cross-hatch patterning. The text on the face reads Seiko 5 sports - above the hands, and below it shows water 100 resist automatic 23 jewel. Edit - having watched the reassembly, I see that you have used a slightly different case, with a rotating bezel - which is slightly different to the one on my watch!

@ajovev 4 жыл бұрын

Thank you for the great video and explanations, they are really helpful. Especially helpful would be to explain how to avoid flying components. I lost the jewel holder clip of a scrap nh36a movement. It flew in somewhere, never found it.

@MyRetroWatches 4 жыл бұрын

ajovev thanks for your nice comment. “Ping” moments happen to us all and the springs that hold the jewels in are particularly difficult at times. I have done a video on that subject so look at my others for diashock & diafix installation . Finding them can be impossible if it’s steel then a big magnate is what I use. Generally using good tweezers (Dumont) I recommend allot but they are pricy. Then it’s just learning your feel which only you can learn A few years back I contemplated buying a small light tent (see Ebay) where you can put on your desk. If something flies it could be contained unless it came outwards toward you! Problem is you can’t get a good view because the tent would hinder ..

@carloscarvalhido2424 4 жыл бұрын

Hi. I personally prefer two hand lifters and a plastic bag than the presto tool to remove the hands. Great stuff here. Congratulations for all your efforts :)

@MyRetroWatches 4 жыл бұрын

+carlos carvalhido thank you. I am looking at hand levers. I have some but they are not thin enough so I will either machine them down or purchase better ones.

@JamesWoodFCRX7 3 жыл бұрын

Hey there! I’m looking at modifying a similar look 7S36 (same face but different bezel) and having a hard time identifying the case. Do you know what cases that movement came in? I have a vision of building a Fifty five fathoms watch with it

@markirvin2809 4 жыл бұрын

Instead of using that Bergeron dial protector a small ziplock bag put over the dial protects the dial and makes it very easy to get the hand remover under the hour hand.

@MyRetroWatches 4 жыл бұрын

Mark Irvin yes I’ve used that method a few times. The dial protector usually works fine but it’s because there’s a camera in the way where my head should normally be which makes most of the process more challenging to be honest. Having the camera above gives you the viewer the best position especially if you are learning and going along with the video

@theowells8208 Жыл бұрын

i thought the moment at 18:35 was very interesting. good day madam

@ianmargetts4940 4 жыл бұрын

Great vid yet again MB, As you know it’s not my bag, to ham fisted and rubbish temperament, but I would guess fab for other watch tinkerers! Cool to relax and watch you though bro! Get the next instalment out! 😃

@MyRetroWatches 4 жыл бұрын

Ian Margetts of off on my holiday in a few days so uploads will be not till September .. sorry

@deanP. 6 ай бұрын

I just ordered that watch new from Jomoshop with the 7s36 movement in it. Thanks for the video. I’m interested in seeing the internals of the movement. I think it will be very reliable.

@MyRetroWatches 6 ай бұрын

You should not have any real issues with them .

@VWatchie 4 жыл бұрын

A good way to avoid slipping with the screwdriver is to hold it as perpendicular as possible to the screw and only apply as much downward pressure as is necessary.

@rawmobilegamer1833 4 жыл бұрын

Subbed,i was looking for SNZB23 like on your video but it's not available anymore,so i decide it on SNZF17 a few months ago.

@a.aguilar 4 жыл бұрын

Good job. I hope you didn't loose the c-clip for the pawn levers that I think you left behind the movement holder 😓 I haven't had the opportunity of working on a 7S36 or 26 yet, but I have to admit that they takes me out of my comfort area: 1.- I dont like the keyless works in the side of the motion works, just because it's against the order I usually work, and 2.- I hate those little plastic gears for the calendar setting, because I think they will degrade and stop working over time, as has happend with most of the 5606 movements. Looking forward to seeing the rest of the series, thank you very much.

@MyRetroWatches 4 жыл бұрын

Agustin Aguilar thanks. No problem in the pawl lever circlip all safely stowed away. I think the nylon gears have plenty of life in them yet although you would expect them to go brittle eventually. Can only hope it’s a better grade of plastic now. Yes the keyless is annoying . On my last 7s26 service I didn’t do something right and only found out at the end which means train wheel bridge off again etc. Assembly videos will most likely be in a few weeks as I am off on my holidays . Just wanted to upload this now.

@markevans4133 4 жыл бұрын

Hi Mike, I have just finished rebuilding a 7S26 movement. I managed to get the whole thing back together only losing one screw. It's from the date dial guard. Try as I might I can't find a source for screws. And advice?

@appumaster 3 жыл бұрын

Is it possible to change the bezel on this model?

@newlifeforvintagewatches2732 4 жыл бұрын

Hi Mike. As I know this movement is 7S26, not 7S36. 7S36 has another jewel plate on the main plate. Any way thanks for your KZfaq and Facebook videos and photos, they are so helpful. Thanks.

@MyRetroWatches 4 жыл бұрын

Morteza Saremi you know I think you are right. I was thinking that. I now have to wonder if the 7S26 that was in it to start with is actually a 7S36 but with a different rotor! I bought the 7S36 movement as it was listed as that on a website. Now disappointed that I have made a misleading video ..

@MyRetroWatches 4 жыл бұрын

Okay after much thought and then an examination the jewel plate is present on the mainplate. . I did not remove it on the stripdown. I will post a picture in the community tab shortly and in the group if you are on FB.

@MyRetroWatches 4 жыл бұрын

Please join the group . facebook.com/groups/Retro.Vintage.Watches.Restorations/?ref=share

@CreepyRecordings 2 жыл бұрын

Hi I just bought a seiko 5 sports watch with this movement. Brand new with 2 year warranty. How often or when will I need a service? Am new to automatic watches! Gr8 video btw

@MyRetroWatches 2 жыл бұрын

Depending on how much you wear it around 7 years

@aidandowlingdop12 3 жыл бұрын

Hi mate! I recieved this watch for christmas and wanted to know how waterproof it is.

@MyRetroWatches 3 жыл бұрын

I can’t answer that. It’s not really a diver watch for a start plus old watches require their gaskets changing to be kept water tight. Only way to be sure would be to take it to a watch repairer and have it pressure tested.

@TheSteveGullick 4 жыл бұрын

Hi Mike. Is the procedure basically the same for the 26 and the 36? Are there any major differences?

@MyRetroWatches 4 жыл бұрын

HI Steve, there is little noticeable difference between the two other than a small removable jewel plate in the 36 model. I to point it out somewhere in one of the videos. Not sure if its just to bump up the jewel count or is actually an improvement on the 26 version.

@rafii349 4 жыл бұрын

Hi, great video! I have a question, for example what if we have an issue only on the keyless movement. Would it be any problem if we only disassemble it only from the movement side without disassembling the calendar works? Much appreciated

@MyRetroWatches 4 жыл бұрын

Rafi Ihsandi possibly . To get to the keyless you have to remove most of the movement side . If you leave the train of wheels in place then you stand a chance

@hammadsaeedlodhi 3 жыл бұрын

I have recently purchased Seiko 7s36A watch. it runs perfectly whole day as long as i wear it but i noticed it get stopped when i place it on table at night for resting purpose after one hour. what could be the most common reason so i can open and do it myself. just appreciate if any of your guys can give me suggestions. Thanks.

@ariestu84 3 жыл бұрын

is there any effect on 7s36 if setting the clock in the opposite direction/counter clockwise?

@MyRetroWatches 3 жыл бұрын

I have heard this before but I see no real issue with it certainly with these. Where there could be issues is with the day date backing up past 12 if its just done a date change . Ironically in vintage watches like 60s etc the date often didnt have quickset so you would wind past 12 to change over and carry on until around 1 then wind back to 10 and forward again to change over, like a hack quick set. Accutron tuning forks you dont want to wind backwards though.

@ariestu84 3 жыл бұрын

okay thanks for this good information, I often set the minutes in the opposite direction just 5 minutes every day, now I'm sure that won't be a problem

@ec-hi1br 3 жыл бұрын

WHAT YEAR IS THIS WATCH ? THANKS !

@riorj553 6 күн бұрын

Dear Mike, can we using 7s36 movement into 7s26 case?

@MyRetroWatches 5 күн бұрын

Yes.

@a.kurniawan3004 Жыл бұрын

I have similar watch, I want to replace the glass, what is the exact glass diameter and thickness should I order?, Thank you in advance.

@MyRetroWatches Жыл бұрын

I can’t remember. You have to remove the one you have and measure it.

@ABCdotcom 3 жыл бұрын

Are the day and date wheels interchangeable between 7S36 and 7S26 movements?

@MyRetroWatches 3 жыл бұрын

Yes. the only thing to watch out for is crown position. Both movements must have the crown at the right place. eg crown at 3 oclock. The discs are designed to line up with the window at crown positions so a crown at 4 will not line up with a crown at 3,.

@ABCdotcom 3 жыл бұрын

@@MyRetroWatches ok thanks. What about the NH36?

@olejohanpalsrud6896 4 жыл бұрын

I would say this is actually a 7s36, you se that it has the ekstra plate with to jewels on the calender side of the mainplate as the 7s26 don't have.

@MyRetroWatches 4 жыл бұрын

Ole Johan Pålsrud really? This is going to be an interesting debate then. I will have to compare it with my 7S26 video to be sure. I was under the impression that the 7S36 was a bit like the 7019 with that removable jewel plate . I will be pleased if it is a 7S36 . I need to get the service sheets out! Thanks Johan

@MyRetroWatches 4 жыл бұрын

You are right sir. I have just looked at the mainplate and sure enough there is the jewel plate!! I missed it on stripdown and in playback. Now relieved thank you so much .

@olejohanpalsrud6896 4 жыл бұрын

I just done a 7s36 myself, and notised that ekstra plate who is held Down With one screw, i've never seen that in the 7s26.

@MyRetroWatches 4 жыл бұрын

Ole Johan Pålsrud my understanding was this was the only difference . The 26 is a 21 jewel and the 36 a 23 jewel. I even knew about that plate but for some reason it slipped my mind to look for it on stripdown . When questioned by another comment here I assumed he was correct ...

@olejohanpalsrud6896 4 жыл бұрын

That is the only difference that I have seen on theese movements yes.

@Animalkisser 4 жыл бұрын

Which one would you think is better, the7S36 or NH35A?

@vascosaldanha602 3 жыл бұрын

Nh35 is better. Hack and hand wind I think

@Animalkisser 3 жыл бұрын

@@vascosaldanha602 Plus the barrel hole is jeweled.

@rpja8874 3 жыл бұрын

What seiko model isa that?

@drunkdriver 4 жыл бұрын

Could you tell me how to adjust the date wheel alignment on these movements? I'm thinking of filing the date wheel lock click spring.

@MyRetroWatches 4 жыл бұрын

drunkdriver can you explain more , what is out of alignment the date or day wheel? Day wheel you can adjust but the date wheel can only go on one way.

@drunkdriver 4 жыл бұрын

@@MyRetroWatches Thanks for responding. The date wheel is slightly out of alignment such that the number sits slightly higher in the window. My theory is that if I filed down the locking finger, the date wheel would rotate clockwise further and solve this problem.

@MyRetroWatches 4 жыл бұрын

drunkdriver hmm. The only thing that moves it is the black nylon part which has the date & day fingers. Quickset is a different mechanical operation. So my question now is, is the alignment out on both quickset operation & turning through 24 hours or just one of these operations?

@drunkdriver 4 жыл бұрын

@@MyRetroWatchesThe date wheel is off by the same amount with both quickset operation and through turning 24 hours. I think its the mechanism that locks the wheel in place that is the problem. Or perhaps the datewheel is printed misaligned.

@MyRetroWatches 4 жыл бұрын

drunkdriver how long have you had the watch and has it always been this way? There is a chance that it’s the wrong date wheel.. The way they work is very simplistic so it’s hard to believe anything would be worn enough to cause an issue .

@thisisbadstuff 4 жыл бұрын

Wouldn't "motion side" be referring to the side with the motion works? In other words the dial side?

@MyRetroWatches 4 жыл бұрын

thisisbadstuff this is my bad. I am not trained and just a hobbyist so do not know the correct terminology. I “assume” motion is the mechanical train side and calendar side is the opposite. Sorry for confusion

@relaxatry2347 4 жыл бұрын

I have same watch as above it is gaining time, 1hour per 24hrs.

@jethurpardillo4640 2 жыл бұрын

what kind of glass 7s36 original..

@MyRetroWatches 2 жыл бұрын

Seiko Hardlex

@MyRetroWatches 4 жыл бұрын

Sorry guys looks like 1, I have a sound issue ... 2, KZfaq has put in too many ads. I will try to rectify 2. 1 I am stuck with...

@dodgydruid 4 жыл бұрын

I lost the alarm spring contact from a baby G, dropped it onto the carpet so what I did was put a new bag in me 1200w Henry and hoovered all the floor and I found it inside the bag, smaller than a grain of rice the damned thing was, waste of time too as the alarm part of the baby G was kaput and I felt like a right lemon on me knees with a backlit magnifying glass til I had the bright spark idea with the Henry :)

@dodgydruid 4 жыл бұрын

Day before yesterday think it was, my daughter found one of my old skool Sekonda's that had sat in a cupboard for years, so whips off the case, new battery in and its up and running but I hadn't quite engage the spring pin in the folding part of the buckle and a couple hours later over a concrete floor it hit the deck smashing the crystal and damaged the Miyota 2115 movement which went crazy with the minute hand going round like a second hand then stopping and starting like it was on dodgy stuff :( Still only a couple quid for a new one, the dial survived and the glass is like hardly anything. I was very cross tho, did a Basil Fawlty at the fone when it kept ringing.

@MyRetroWatches 4 жыл бұрын

Ian Watson man that’s some bad luck. I use a big magnate on the occasions I loose parts

@robertbrandywine 4 жыл бұрын

What causes a 7s26 (and presumably a 7s36) movement to not hold its wind for more than about 4 hours or so of inactivity? The number of complaints about this on the Web are numerous and I've never seen an explanation from a watch repairer. To me, its as if the mainspring stops releasing its stored energy after four hours. Can they "stick"?

@MyRetroWatches 4 жыл бұрын

Robert Brandywine not holding power will be mainspring related. I would first check the rotor is on correctly as you cannot hand wind the movement it relies solely on rotor movement. A well serviced 7S should run 36-48 hours on a full wind ( could be two days of wear to wind) If possible I would take the back off . See if the rotor is loose from its fitting. If not you can use a screwdriver to wind the mainspring , screw is on top of the ratchet wheel. If fully winding the spring and the watch still stops then it’s not power it’s something in the train stopping it. A service would sort this out.

@robertbrandywine 4 жыл бұрын

@@MyRetroWatches Thanks, I checked that. Anyway, since I posted, I sent it off to a watch repair shop that will work on the 7s26. I'll report back what they find.