Jump to content

Seiko stopping around 1am - day change maybe?


Recommended Posts

Quick query, I've a Seiko with a 6106 movement in that stops around the 1am mark every night. If I manually reset the time it carries on ticking regardless, so it's not power running down then. 

 

I wonder if it could be related to the day change? It's had a new date wheel which ticks over fine at 12 o'clock - I wonder how far after the day change kicks in?  (There is no day window on the dial so I can't tell when that ticks over without removing etc).  

Movement is cased in a different watch case so I can try removing it to see if that affects things too. Otherwise maybe low amplitude? I should stress before the recase/dial etc all worked fine. Ta!

Link to comment
Share on other sites

On my Seiko 7S26B the day change happens around 2am, but that's a more modern watch than your 6106.

I'm curious: why leave the day works on the movement if the dial doesn't have a day window? Perhaps you could simply remove the day finger and day star with dial disk. That would remove it as a possible source for binding.

  • Like 1
Link to comment
Share on other sites

23 minutes ago, GPrideaux said:

On my Seiko 7S26B the day change happens around 2am, but that's a more modern watch than your 6106.

I'm curious: why leave the day works on the movement if the dial doesn't have a day window? Perhaps you could simply remove the day finger and day star with dial disk. That would remove it as a possible source for binding.

Very good point, and honest answer is I thought I had before I checked my parts from the donor and it wasn't in there! That's definitely one to try...

Link to comment
Share on other sites

2 hours ago, AndyGSi said:

Sounds like a classic example of a fault with the day change which I'd expect to complete around 3am.

Depending what dial you've fitted it could even be dragging on it.

First thing to try remove day wheel? Should I take anything else off with it - day finger and day star?

Edited by tIB
Link to comment
Share on other sites

23 minutes ago, tIB said:

First thing to try remove day wheel? Should I take anything else off with it - day finger and day star?

Can I ask why it's not in a Seiko Case and what dial is fitted.

If it's not in an original case what have you used as a spacer ring?

Link to comment
Share on other sites

11 minutes ago, AndyGSi said:

Can I ask why it's not in a Seiko Case and what dial is fitted.

If it's not in an original case what have you used as a spacer ring?

It's a bit of a franken holding project - the watch it came from was a parts donor for another project, and the movement ended up with 6105 dial and hands on inside an non Seiko (nh35) case. Plan was to fit it into a Seiko case eventually when/if one turns up. 

I'd perhaps be better off looking for a different movement (since the date push set obviously doesn't work - it doesn't bother me too much though) but I always keep an eye out for another 6105 movement so I'll likely wait for that... 

Link to comment
Share on other sites

20 minutes ago, tIB said:

since the date push set obviously doesn't work

Is this a fault with the movement or due to the case.

If you want to get it operational as you've built it now then removing the disc and finger should work but make sure you keep them for the future.

  • Like 1
Link to comment
Share on other sites

27 minutes ago, AndyGSi said:

Is this a fault with the movement or due to the case.

If you want to get it operational as you've built it now then removing the disc and finger should work but make sure you keep them for the future.

It's due to the case/crown type - day and date both worked fine in the correct case, but I don't worry about date in this one. 

I'll do that thanks - I've got all the remaining parts from the other watch (and replacements for the ones used) so it can be built back up should the chance arise. 

Also, sorry - the day finger... Is it the one in this picture marked 6?

Screenshot_20250112-1931232.png.d29ff9b2df07b843b7359f306b377e41.png

Edited by tIB
Link to comment
Share on other sites

1 minute ago, AndyGSi said:

The parts marked 5 & 6 are the Date Driving Wheel.

image.png.773ecfa659916b2b740d6ba58633eb65.png

Thank you! Just been watching assembly videos and realised I had the wrong part. Appreciate the help - I'll take a look later in the week I think... 

Link to comment
Share on other sites

Right, job is done... I've set to 9 pm so let's see if its still running at lunchtime...

 

Here's the watch btw - that battered bezel ring came off my real 6105-8000 case... suits that battered and bruised dial pretty well I think!

IMG_20250116_092348.thumb.jpg.25074af25cc65daf9ec8a6ca727a72d4.jpg

Edited by tIB
Link to comment
Share on other sites

And it's still running this morning, great stuff!

 

I'm not sure I did the 'fix' correctly after looking at a couple more YouTube videos last night - got a feeling I removed the day wheel/star but probably the quickset rather than the day finger... I couldn't find the day finger seen on that diagram above, which I think is for different variant of the 6106 - mine is the c, so incorrectly removed the wrong (but also obsolete in the build) part.

As long as it behaves ill probably leave it but thought I'd mention, more as a reminder to consider it if it misbehaves in the future...

Thanks for all the help as always!

Link to comment
Share on other sites

18 hours ago, AndyGSi said:

The Day Finger is different on the C.

image.png.349accfd5e813bfbcd7644fb5550ae8c.png

Aha thanks, should I need to open it again I'll figure out where that lives. It continues to run fine so guess I've no need currently...

Link to comment
Share on other sites

  • 2 weeks later...
41 minutes ago, AndyGSi said:

Does it restart if you advance the hands?

No, I've advanced the date/day too but it's not happy. I'll get the movement out of the case after work and see if I can see something impeding the balance. Or maybe something else?

Oh hang on... We're back!

Link to comment
Share on other sites

Odd one that - I reckon it took me about ten minutes of shaking to wake it once more. Been fine ever since but I wonder what the issue was - maybe some debris got in there somehow when I did the recent work? Usually when I shake and wear from fully unwound I generate enough power to keep things ticking, and I've never had to spend quite as much time to get things running again.  Guess I'll de-case it today and have a look...

Link to comment
Share on other sites

  • 2 weeks later...

Coming full circle here, I managed to find a replacement 6106c movement for the donor watch - guess what happened at five to 12 the first time I ran it... Yup, stopped. 

This time though I think it might have been my hand fitting when putting it all back together - I think the hour hand might have been catching on the 12 marker. 

Link to comment
Share on other sites

And then after a little more wear yesterday everything went smoothly last night. I'm going to keep it on for the full day and see what happens with it...

Worry is I bought the movement to put a donor back to correct to move it on... suspect with all the wearing I'll end up falling for it!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...