Seiko NH70A stops on its own.

DIY Help
#1

Hi guys and gals.

I bought a watchmaking kit back in august.
The watch was working perfectly, I adjusted it on my timegrapher, which i bought for this watch.

The watch was running fast intentionally.

Now I have problems with the watch just stopping.

I got it on video if you would like to see it and if i can upload it.

Yes I did wind it. Today like 20 revolutions of the crown + what I recorded on Video.
But she still stops after a few minutes and sometimes within a minute.

Can you help me?
I really love this watch and I loved building it, even though it is a new hobby for me personally.

Greetings Marek.

#2

If the watch is stopping that quickly (within ~5min) and you don’t see the hands close to each other when it happens, most likely there’s something in the gears of the movement itself. Especially you’ve had it open a lot to adjust the timing. Go over it under magnification. It can be something as tiny as a single stray thread.

(When I work on my watch movements, I wear a cap, full painting suit, and rubber gloves, with all of the cats out of the room. Still happens more than I’d like to admit!)