Here is my full review of the MIYOTA 8215: kzfaq.info/get/bejne/n6l5la-qvdeUmKM.html

I have a citizen watch with this movement. On a timegrapher it's all over the place, if i leave it in different positions it will gain or lose up to 15 seconds per day. But if I wear it constantly, which is how these movements are intended to be used, it runs at +3 seconds per WEEK.

I finally grabbed my first watch with an NH35... that's what brought me here. I watched a JOMW video where he broke down how special the aliexpress Addiesdive 1000m diver was for $80, and I leapt at the opportunity. Its very impressive how well it keeps time when I wear it.

Notes on the NH35A: I have 2 of them, both in Invicta Pro Divers. One has a power reserve of 45 hours, the other, 48 hours. On the timegrapher, dial up, both at +\- 1 spd (seconds per day). Dial down, -4 spd, crown down, - 7 spd. I regulated one of them which was +10 spd. The other was close to spot on. Given Seiko's tolerances (-20 to + 40 spd, 41 hour power reserve), the NH35A overdelivers. And, although it's much too expensive to pay a watchmaker to service it, a reasonably adept amateur can service one. Aside from changing the battery, try doing that with a quartz movement!

I've never had any problem with either of these movements. They have proven to be accurate and reliable movements.

great work, amazing videos. Please do reviews on movements like SW200/300 / MIYOTA 9015 too

I have owned watches with both, and own a timegrapher. The NH35 hacks and has a bye directional rota which is an advantage. However, the Miyota has better positional variance. Both are decent reliable calibers but I would go for the NH35 given the choice. I believe there is now a Miyota 8315 now, which is meant to be very good. The Miyota 9000 series is far better than the Seiko's 6R35, which is there counterpart

Thank You for this very concise Presentation! You are helping the. consumer make an Educated choice!❤

Great information ❤👍✌️

Great comparison. Thanks!

Great video! Not really a fan of the Miyota movement but I do really like the Seiko.

My first build has a 8215, I'm so happy with it. It runs +15s p/d consistently straight from the factory. My next build will be a NH35 for sure 👌 Great video, thank you

Great video! Thanks for making it. The funny thing I’ve found is my watches with Miyota movements have achieved really good timing, usually -3 to +4 per day, while my seiko movements are usually more like -5 to + 12 per day. Miyota underpromises and over performs while seiko usually under promises and over performs to a lesser degree.

I bought the 007 about a year before being discontinued and found it not winding well on the watch winder. I suspected lack of rotor oil. Yes, oiling improved the winding substantially. But still somewhat stiffer than ideal normal. Seiko QC has fallen off a cliff.

What a good video, we want more videos like this, of Swiss, German, more Japanese movements...... thanks and greetings

I have a couple of both. My Miyotas handle low charge or not being worn much better. My NH35's or 6R's go nuts after 20h or so.

I think it's time to compare chinese movement to japanese movement, they are not trash according to my knowledge. Especially DG2813, too cheap and CAN be reliable. Just make sure you didn't got bad luck. Quality control in China is getting better over time tho.

NH35 is pretty cool, I had maybe 7 of them recently in my MODs. you can indeed get within 3 seconds daily variation if you have the patience to adjust the time over few day period. It can be impressive. But not all can be like this, some movements will be 10+ second difference regardless of how much time you spend adjusting them.

Both excellent workhorse movements I would say the seiko is better overall, however I have a real soft spot for the miyota as based off the tried and tested 8200 movement the slight rotor noise doesn't bother me and as for hacking I have found that from around 2018/19 the miyota hacks I think maybe older stock still out there without hacking if you go for a miyota ask if it hacks.Either way I feel both movements are excellent no bells or whistles they just get the job done very well great for everyday watches .

Excellent

There are many other "clones"( movements that can be used in the same watch) of the ETA 2824 Such as the Sellita Sw200,the STP's the Seagulls etc!

There's also a difference between 4R35 and 4R35B: the B variant is an updated version which has 23 jewels instead of the earlier 21 jewels. Idk why people claim it's 24 jewels, but my Seiko Presage has a 4R35B with 23 jewels, according to the text on the rotor.

Just got my first miyota powered watch was a mod from eBay it’s good on timekeeping but noisier than my seiko powered watches so leaving it on bedside cabinet is a no no

In my opinion although both movements are similar the nh has way way more option when it comes to cases, dials, hands and other watch parts. This is because nh comes in a watch that has so much die hard fans which creates market for parts, as opposed to to the Miyota which comes in invictas, so does the nh but miyota I don’t think has a cult classic watch that it was used in to create the same demand.

So which one do you prefer Sir ?

Seiko has the licenced Magic Lever

9015, 9019, 9039 whats the thinnest model? all three same accuracy and power reserve?

Ive seen 8250... just a newer version in the 8200 family?

SEIKO NH35 однозначно лучше чем MIYOTA 8215. У SEIKO NH35 автоподзавод на шарикоподшипнике, двунаправленный ротор и плавный ход секундной стрелки. В то время как у MIYOTA 8215 автоподзавод на втулке (что даёт шум и более быстрый износ), однонаправленный ротор (меньше эффективность) и секундная стрелка тормозит, заикается (устаревшая схема в механизме). Всем рекомендую покупать часы на SEIKO NH35.

I accidentally turned the crown the opposite way when setting the date on my Bulova Devil Diver with the Miyota 821d-21b movement and forced it thru two clicks, did I damage it at all?

citizen must be upgrade their movements but its good reliable movement anyway, everyone loves tsuyosa's afterall

Not oiled? Manufacturer is expected to take it apart and oil before use?

I am about to buy a Rolex case and trying to choose movements. Either Seiko NH35 or Miyota 8215. Do you have any clue if both will fit or is the NH35 too big? I have very god experience with NH36 in my Seiko 007 case and hope that will fit. Thank you for another great video!

I have a NH35 movement. But the next is a miyota to compare.

An Orient Movement would have been right at home here

Sea-gull st 16 weeeeee

4:40 - Sapphires dyed red. Not ruby. That's why they're labels jewels, not rubies anymore. Rubies and sapphires are chemically the same as far as a watch cares. 9 out of 10 in hardness. Diamond is 10. Sapphires and rubies are both part of the chromium family of structure. i.e.- they're all sapphires. The ruby had more chromium which makes it red. Any other color would just be called a sapphire.

One of these is built in Japan and one is assembled by 9 year olds in china.

There are counterfeit nh35 movements.

There are definitely fakes of the Miyota 8200 series movemts out there on eBay and such. You can spot them by the shock protection. Probably because the fakers weren't able to produce the citizen parashock system they did put in something else. Definitely not from the same production line. Plain and simple fakes. Be careful when buying.

Comparing the 8205 would have been fairer.

Both movement are crap

The biggest problem is the 8000 series is noisy.

I love miyota