Here is a full review of the MIYOTA 8215 / 8205: kzread.info/dash/bejne/m3d9xK6yiNSWmNI.html

Another great thing about the automatics with handwinding feature is that you dont have to worry about the overwinding. If a full charge needs, lets say, 40 turns of the crown and you give them 50 you wont break anything cos when fully charge the winding mechanism disconects.

@Angel_cp4

Жыл бұрын

I was looking for this comment and confirmation! Thank you !

@Mario-my8yo

Жыл бұрын

@@Angel_cp4 my pleasure. Its worth though to check the manual cos its like that 100% in the modern ones. I do not know in old vintage mecanisms.

@clontstable1

11 ай бұрын

And this is an improvement over the Swiss SW-200 movement which, if you are not careful, you can overwind and shear the teeth off of one of the gears.

@VladimirVP888

11 ай бұрын

@@clontstable1 Thanks for the tip, I didn't know about that !

@mickeydee3595

8 ай бұрын

@@clontstable1 Not just the Selita SW-200, but the ETA 2824 in which the sw-200 is based/copied off is also very prone to this issue.

A great movement... Pagani Design seem to be using this in the majority of their watches now.. Even the 7S26 was a great movement.. ..and my dad's seiko watch is still going strong to date since December 1999 without service. That's 23 years and 6 months to date with ongoing accuracy....without a service needed

@Apik_Apek

10 ай бұрын

that already beats some Swiss movement that has to service about 5/8 years once . Impressive

Excellent video, well done. Easy to understand, great quality. Thank you!

Thank you I totally overlooked this watch movement!

Good video 👍🏼 . I am beginner, just done my first disassembly/assembly. 4R36. Thanks for the video.

Great overview of these movements

Thank you very much for this wonderful review of the movement! Regards!

Thank you so much for this informative video on the Seiko movement. I've read about several micro-brands and homage watches being equipped with this movement, and had wondered about the quality of the movement. Of course the "Seiko" name alone speaks volumes in and of itself.

Very clear and interesting. Thank you!

5:50 fully agree !! + easy to repair (i did on a lot of broken, rusted ones ...)

Great video, thanks for doing it.

Thanks for the info on this movement, I really appreciate a professional opinion.

@SillyVintageWatches

6 ай бұрын

Glad it was helpful!

Espectacular, gran video, gracias.

I have had a Steeldive SD1969 with an NH35 for 18 months. With a little effort I managed to regulate the movement to 0 beat error and +2 sec per day. The amplitude of the movement is on the low side but this does not seem to have an obvious negative effect. The watch runs fastest with the movement upside down (watch face down). Should your watch run a little slow over the course of 24 hours, place it face down during the night and see if it catches up.

@sumahama1981

Жыл бұрын

"Should your watch run a little slow over the course of 24 hours, place it face down during the night and see if it catches up" Interesting! I might try that! Thanks!

@chronocommander007

Жыл бұрын

@@sumahama1981 That works for my watch that has an NH35. I have no idea if that's consistent behavior among all NH35 movements. However, you should be able to find a position in which your watch runs faster or slower than in does in any other position and you can use that property to your advantage.

Im relieved to hear that adjusting the day/date at the wrong time doesn't necessarily damage this movement. "Foolproof" sounds nice but there still is a warning. They were keen to say it "may damage" in the manual so probably okay if you slip up.

@rl7487

7 ай бұрын

I had an omega seamaster 300 brand new the date stopped working. Maybe someone at the store changed the date at the wrong time in the evening. Nevertheless the warranty covered it and I was without the watch for 3 months. Never had a seiko break on me. The omega is a $6000 Watch.

Even though I’m not a watchmaker, I like watches and did enjoy this video. Please make more movement videos like this!

@SillyVintageWatches

Жыл бұрын

Will do! Seagull, Miyota and others are in the making!

@Apik_Apek

10 ай бұрын

​@@SillyVintageWatcheshi sir. Can U explain the NH34 movement?. Too many GMT watches at the market use this movement. I need to know. ❤ Is it good to use around 4/6 years above without any service?

Great video! 👏

@SillyVintageWatches

Жыл бұрын

Thanks!

4R36 Sports 5 here. Price point is fantastic.

Great vid.

My San Martin Ranger 36mm has the NH35 in it and is running at + 0.2 seconds a day out of the box. Great movement that's affordable and easy to work on. No negatives here!

@deanconway8776

Ай бұрын

0.2 of a second ?

@oldschool8432

16 күн бұрын

I think he meant 2 seconds. My prodiver is very close to -2 sec a day. Had it since 2020 an wear it 24hrs daily

What about the pretty low amplitude of this Seiko movement. Personnally, I was unlucky with a 4R36 inside a King turtle. Even with a big watch price tag, the movement was unreliable. The regulation was not bad, but the amplitude was around 230° on the timegrapher with a new movement fully wind and the good 53° lift angle set, seem not good even for Seiko movement. The deviation was big when I was walking, but good for an office day.

So happy with my 4r35, out the box it's losing only about 35 seconds a month.

The movement is a stunner. With care and an ability to move the regulator in hair's width increments, the accuracy can be brought down to within the Swiss qualification for a chronometer (-4 to +6 secs a day). My example is in a military watch and is around +3 seconds a day. This is better than some quartz movements. Quite how they cram all that synchronisation into such a small package is genius.

@betulaobscura

7 ай бұрын

It is no better but still impressive for mechanical movement in this price range. None of mechanical movements can come close to quartz accuracy, especially if you want to use mechanical movement outside laboratory. The worst quartz movements have max deviation 1 second per day, no matter of its position or temperature. Even Rolex can't do it. My cheap (~20$) Casio F-91W has +2 /+3 seconds of deviation... per month.

Where are the good ones sold? Really appreciate info.

EXCELENTE MACHINE SEIKO 👍👍👍 🇧🇷

when did seiko first make it?

Just bagged a pagani design with nh35 for 25 beans 😎

Great help thanks

My Spinnaker watch had stopped twice and I thought it was defective. Now I know it is movement powered.

Great video.

Good video.

I have a mechinacal watch with a NH35A as its core. Its very reliable and works really well so I can only say good stuff about this movement

Great video, thank you for this. The issue that weirds me out about these movements, as they are put into watches, is this: ....why doesnt anyone set them right? I have two watches running each of these movements, one is -7 seconds per day, the other +26 seconds per day. It is literally amazing how accurate these watches are......and wrong. Im not a watch guy but if they can get the movement to run at precisely +26 seconds per day, for over two years, is it not possible to test this before they throw it out of the shop?

@stevelaferney3579

4 ай бұрын

Yep but then as time is money the cost of the watch goes up.

Great video

@SillyVintageWatches

Жыл бұрын

Thanks!

Excellent video. Do you know if 4R35 and 4R36 movements have plastic parts?

@SillyVintageWatches

9 ай бұрын

Yes, they do. But only in the date setting mechanism, as far as I know.

If you look at the balance wheel you can't see it moving. The engineering is that precise. But, when I look at other movements even the Rolex 3135, ETA 2824-2 I see the balance wheel wobbling as if its off balance, like a spin top that is running out of 'steam'. I am no expert, but I'm sure a wobbling balance wheel isn't good in the long term. I have the Marathon 34mm General Purpose Field Mechanical watch with the NH35 in it. The watch, which come in EAT-F06 quartz and NH35 mechanical is issue to military personal. I was told by a miliary ordnance supplier the mechanical version is issued to covert operatives for its reliability; and for potential use in ATEX/ hazardous environment zones.

I just got a watch with the NH36, if I shake my arm close to my ear I can hear the rotor spin, is this normal or should I be worried?

Thanks for the video! Seen a deconstruction video of these. Seems like they contain some wheels made of plastic. True? thoughts?

@SillyVintageWatches

2 жыл бұрын

True (to some degree). As far as I remember, two plastic wheels are used for the date mechanism. They are not relevant for the timekeeping part of the watch. In the date, they even make sense, since they don't require lubrication and are exposed to very little wear. I would also suspect that they are lighter than wheels made from metal, and therefore help with accuracy during date changes and help increase the power reserve. But that's my assumption.

@mohammadahmad4592

2 жыл бұрын

I agree.....

I have the Invicta Pro Diver with this movement 😅

I have Seiko Monster 2nd gen with 4r36 and there is some plastic part inside ( for date i believe). Can you explain why and how it affects other parts and the mechanism in general? Thanks

@nathanlowran4526

Жыл бұрын

"True (to some degree). As far as I remember, two plastic wheels are used for the date mechanism. They are not relevant for the timekeeping part of the watch. In the date, they even make sense, since they don't require lubrication and are exposed to very little wear. I would also suspect that they are lighter than wheels made from metal, and therefore help with accuracy during date changes and help increase the power reserve. But that's my assumption." - Silly Vintage Watches

I guess I have an older one in my skx no hacking or hand winding. When was it updated?

@SillyVintageWatches

8 ай бұрын

Hi, thanks for your comment! The SKX never came with the NH36 /4R36. It always came with the 7s26 and that never had hacking or hand-winding. But you can swap the 7s26 in your SKX for a NH36, I made a video about it. kzread.info/dash/bejne/fK6mtrqkmci7fps.html

Thanks for the video, I just got 2 Seiko with this movement for a daily watch , :) , $239 each

@SillyVintageWatches

Жыл бұрын

Good choice!

Great video would you say the Sw200 is better than this MOVT? Thanks 🙏

@SillyVintageWatches

Жыл бұрын

The way you ask, I would generally say yes. But the two movements are hard to compare to each other since they sort of belong to different price categories. To answer you more precisely: they both do well in their respective categories.

@clontstable1

11 ай бұрын

I own several Swiss watches with the SW-200 movements. They are solid and reliable except for one caveat, they are susceptible to overwinding. If they are overwound, there is a risk of shearing the teeth off of one of the gears.

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

@USMCPFC1

4 ай бұрын

Crazy how many people actually care about precise time. I normally set my watches 1-5 minutes fast and know that I am generally going to be on time wherever I'm going.

@stevelaferney3579

4 ай бұрын

I tried that back when I was in the world several times and it eventually drove me insane. Don’t know why but I’m the type who has to have my watch say the correct time. Of course I have to leave earlier. : )

@j.h.2967

4 ай бұрын

And remember to take some pictures!

My nh35 runs GREAT... like, wearing it 24hrs a day, it gains about 1 second a day... its impressive.

@Tunkkis

Жыл бұрын

Dang, mine runs about 20 seconds fast a day. I'll have to get that addressed when getting it serviced.

@sidewinded1

Жыл бұрын

@@Tunkkistry demagnetizing it before you get it serviced

@simonboev

8 ай бұрын

Уточните после 6 месяца !! Нет второй недели когда купили.

Got a Zelos Hammerhead V3 with Seiko NH35 movement inside. All seems to work fine except i feel no resistance at all while hand winding the crown. The hand wind basically spins almost freely. Please advise if this is a problem or if this is how it winds ..

@SillyVintageWatches

Жыл бұрын

Indeed, the hand winding is very very light. You don't get much feedback, even if the watch is fully wound. If the watch runs out of power, does it start right up if you pick it up and start winding it?

@joy.kachru

Жыл бұрын

@@SillyVintageWatches it doesn't work. I got it checked at a service centre and they confirmed a part broken in the movement. Zelos is sending me a replacement NH35 movement.

The NH35 when well adjusted, It has the accuracy of many quartz watch (15 sec/month). Is my personal experience

According to watchcaliber the nh35 caliber are made in Japan or in Malaysia and is written on the rotor( it writes Japan or Malaysia close to the center of the rotor).Most of the nh35 that I have on my watches doesn’t have that sign at the rotor (the same with that movement at the video)That means that they are clones that they are coming from china? What is going on? I’m confused if you have an answer I will appreciate it! Thanks

@sumahama1981

Жыл бұрын

I believe some are made under license in China.

@rosomak8244

8 ай бұрын

There is a third SEIKO owned factory in Hong-Kong making them. Time Module Incorporation.

I'm curious..... is it worth getting a cheapish movement like this serviced and how much would it cost??

@Synic08

Жыл бұрын

Number 1.. no... Number 2, more than a whole new movement.

34mm. Seiko 5. 1999 my model.

To be fair, you get all the same things plus some decoration and better accuracy from miyota at a very small premium

Hi! I have a Spinnaker that runs on an NH35 movement and I'm troubled by an issue. My watch runs wildly. Within 15 minutes, the time fluctuates (if that is the correct term) like it's getting delayed by 5 mins then it's going to advance by 5 mins. This keeps on happening within the span of 15 mins. There is even a time when it stops running while it's powered up and on my wrist.

@wk9205

Жыл бұрын

I have exactly the same with a new NH34 movement. Also the amplitude is between 165 and 179 and the beat error is 1.1. I wonder what is wrong, but I suspect their quality control is also not fully up to par

@TheMrZOMBIE13

Жыл бұрын

Sounds like the movement could be magnetized. It’s a pretty simple fix, most jewelers can do it

So how do you tune the watch to get the low 5-6 sec accuracy?

@chronocommander007

Жыл бұрын

Adjust the beat error as close to 0 as you can and then adjust the rate as close to +/- 0 sec per day as possible. Then see how many seconds per day you are off on average and correct for that. If you want to go crazy you can adjust in several positions and various temperatures and find a happy average that works for you. I can with a little effort regulate my watches usually to within 0 to +4 seconds. You do need a timegrapher, a dust-free room with clean air, and the tools to open and regulate the watch. You will also need a new case back seal and seal lubricant.

I have a seiko 5 SNKE03KC with 7s26c movement is it possible to replace it with a nh36?

@bobvagene

Жыл бұрын

Yes, there are a bunch of vids showing the swap. Not to hard.

I have six watches with this movement. Three seikos and three micro brands. You get more value from micro brands with sapphire crystal and over 100m water resistant. Unique designs with the same movement. Just do some research on the micro brands you are looking at.

@Apik_Apek

10 ай бұрын

Pagani with sapphire crystal & solid stainless steel body is on 🔥🔥🔥

@AQBPlays

7 ай бұрын

Agreed. Zelos and Islander are well ahead of many more expensive manufacturers in my eyes

Can you use the crown from the nh35 in the nh36

@nathanlowran4526

Жыл бұрын

Yes

My San Martin has that engine :)

I want to fit in the case how many millimeter case is required to fit the watch

@SillyVintageWatches

9 ай бұрын

The NH35/36 should have a casing diameter (including the gray movement ring) of 29,36mm.

With hacking and hand winding can I still wind my watch on a watch winder?

@SillyVintageWatches

Жыл бұрын

Yes you can

😉in terms of accuracy is the nh35 the same as nh38?

@SillyVintageWatches

Жыл бұрын

I would pretty much say so. The construction is essentially the same.

How reliable are these ? After how many years do you need to get them serviced ?

@SillyVintageWatches

Жыл бұрын

Seiko movements have a reputation of being watches that just keep going and going. However, I would service them about every 6-7 years or as soon as you recognize a change in performance. With cheaper models that utilize cheaper movements, like the NH36 NH35 NH34 or NH38 you can get away with having them run longer and then replacing the entire movement altogether.

@p.r.s8675

Жыл бұрын

@@SillyVintageWatches thanks for the response.

Pagani Design PD 1639 does it have real NH35 movement?

@SillyVintageWatches

9 ай бұрын

Yes, it does seems to have the NH35A movement.

When my watch with 4r35 movement will die can i replace it with a 4r36

@SillyVintageWatches

Жыл бұрын

Yes, you can, but you will have to change the dial if you want to use the weekday function of the 4r36.

What's the difference between Japanese or Chinese made movement? Where can I buy Japanese?

@rosomak8244

8 ай бұрын

There is no difference at all. They are not made in Japan any more. They are produced in Malaysia or Hong-Kong.

Mine stops and has to be manually wound am I doing something wrong?

@SillyVintageWatches

9 ай бұрын

The NH35/36 has a power reserve of about 41 hours. If the watch stops, it's usually good to give it a couple of turns by hand. The automatic winding takes a couple of hours of movement to fully wind the watch to its full power reserve. If the watch is not worn for long enough during the day or is not moved enough, it can not recharge itself on a daily basis and might stop at some point. If the watch is older than 5-6 years, it might also be due for a service, depending on its condition.

Most days I'm pretty sedentary (like on the computer or reading or watching TV) and the problem I've had with the 7s26 is that the automatic function isn't efficient enough to keep it wound. Does the NH36 share that same automatic mechanism?

@SillyVintageWatches

Жыл бұрын

It is essentially the same technologie and works in the same way, yes.

Anti magnetic?

I know these are fairly cheap to replace but I am curious how long can these last with the proper maintenance every 5 years? A lifetime maybe?

@chronocommander007

Жыл бұрын

The problem would be that labor even without spare parts will far exceed the price of a new movement. An NH35 can be had for $35 to $50. The pallet jewels will certainly wear over the years. The oils used will become dirty and eventually increase wear on the pivots. An NH35 should be capable of running a decade without service or movement swap.

@rosomak8244

8 ай бұрын

@@chronocommander007 A decade is a huge exaggeration. It may run. However serious precision degradation will be noticeable after about 3 years.

@chronocommander007

8 ай бұрын

@@rosomak8244Well, unless you are hobby watchmaker capable of servicing and replacing wear parts, an NH35 is a throw-away movement because having it serviced will cost more than several new NH35 movements. Who is going to pay as much for an overhaul as he would for a new watch? An HH 35 is $40 retail price movement. How much is the wholesale price? As for degradation, yes, of course. But yeah NH35 movements can and often do run for over 10 years reasonably well without s service. It's also unlikely that a person will wear only watch all the time during that long a time period. What's acceptable as far as accuracy and pecsion go is an individual matter. The NH35 is a very simple movement. Something much more complex like a 7750 will usually need to have some parts replaced every 5 to 7 years or bad things will happen. I'm not saying you should not service an NH35. All I;m saying is it's not a fiscally reasonable endeavor for most people under normal circumstances. Yes, you don't thtoem out a a $1,000 movement because it needs a $600 service, but who will pay $200 to service a $40 movement?

@AQBPlays

7 ай бұрын

Nah not always. I have an unserviced NH35 over eight still running +12 per day. I can live with that. I think it will hit a decade

How much do these normally cost?

@iivv_nn

Жыл бұрын

Like 50.00 bucks, the seiko branded ones 4r35 4r36 etc area little more.

does it have a overwinding protection ?

@xdognatex9897

Жыл бұрын

My understanding is that it does.

@SillyVintageWatches

Жыл бұрын

exactly

your opinion on this movement vs the miyota 9015?

@melvinch

Жыл бұрын

The miyota 9015 has a smoother movement.

can it be overwound manually?

@betulaobscura

7 ай бұрын

No, it can not.

tnx