Jump to content

NH36 Date changing at 4am instead of 12am


JayK

Recommended Posts

Hello everyone, 

My recent mod was looking good until the date change happened at 4am and not 12am?! Is there a fix without removing hands etc. as I don't want to do that cuz I'm really happy with the finish and don't want to risk scuffing dial or damaging hands etc.

Appreciate the advice/help folks.

Jay

Link to comment
Share on other sites

Hi,

Yes that's exactly how I put the hands on, I've done five previous builds and I've always put the hands on following this method so I'm baffled as to why this date change is happening at 4am?!

Thanks for the reply.

Link to comment
Share on other sites

It might be rubbing are you sure the date change isn't bent and that it is seated correctly. I wonder if the dial is catching so look at the dial feet to see if they sit correctly in there holes. Should it have a tension washer that goes over the hour wheel is that missing or if its got one is it good.

Link to comment
Share on other sites

Seiko NH movement so no dial washer. As oldhippy says the hands need to be reset for the date change to happen at midnight, as it is NH36 it has a day wheel as well, iirc the day on these changes around 4am.

 

Tom

  • Like 1
Link to comment
Share on other sites

19 minutes ago, tomh207 said:

@oldhippy according to the thread title it in a Seiko NH36 caliber, that is why I answered under that assumption.

 

Tom

I forgot it was a Seiko (old age is a bugger) 🤣

Is that little circlip in it's place and is it flat and not bent. 

  • Like 2
Link to comment
Share on other sites

Hello folks, 

I didn't get time over the weekend but I did manage to reset the hands yesterday and the date change is now working correctly. However, I did scuff the dial a bit 😞

Lesson learnt - get it right the first time! 

Thanks again. 

  • Like 3
Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I'll have a look for it, but don't hold your breathe. Failing that I'll make another video when another bezel needs to be removed.
    • The UK lots can be a 404 hit or miss, 6 - 10 watches can come in anywhere from 20 - 50 quid. I once had a 404 division of 8 watches for a fraction over 30 quid, one of them was a Smiths Astral model National 17 an absolute certainty for winner contender. The crystal was scrached up to the point of being very difficult to see the brand, something triggered a gut feeling in me and it paid off.
    • I just picked up this Mondaine quartz watch on tradera.com for £11. It's a non-runner so I will replace the Ronda movement (£10.95 at Cousins), polish the case, replace the case-back gasket, and replace the mineral crystal. Now, the problem is finding a suitable crystal. The original crystal is slightly domed (2.4mm thick dome), measures 36.4mm in diameter, and is 1.3mm thick at the edge. The closest I can get on CousinsUK is 36.5mm in diameter, 3.1mm thick dome, and 1.5mm thick at the edge. I think the replacement crystal would look OK, but the problem is finding a suitable glass gasket. The case diameter for the glass gasket is 36.9mm and the closest glass gasket I can find on CousinsUK is either 36.8x36.0mm or 37.0x36.2mm. I guess one of those glass gaskets could work but as you can see there's no way the 36.5mm domed crystal would fit the inner diameters of those glass gaskets. I guess I will have to give up on a domed crystal, no? So, the backup plan is to use a (1.5mm) thick flat mineral crystal as the diameters come in increments of 0.1mm. But, what glass gasket would be the better option? The one with an outer diameter of 36.8 (0.1mm too small) or the one with an outer diameter of 37.0mm (0.1mm too large). Again the case diameter for the glass gasket is 36.9mm. I believe I read or heard that the crystal diameter should be 0.1mm wider than the inner diameter of the glass gasket. Is that correct? I'm sorry for all the numbers. I've tried to make it as clear as I could. So, I'd appreciate your thoughts on this. BTW, measuring and sourcing crystals and gaskets is extremely time-consuming! 😓
    • Lots to choose from... Just sayin'.
    • Thank you for your introduction and welcome to this friendly forum. We all look forward to your contributions and continued involvement. 
×
×
  • Create New...