Jump to content
  • Sign Up to reply and join the friendliest Watch Forum on the web. Stick around, get to 50 posts and gain access to your full profile and additional features such as a personal messaging system, chat room and the sales forum PLUS the chance to enter our regular giveaways.

Delving into the unknown....

Recommended Posts

Two or three years ago I acquired a Seiko EL-370 electro mechanical watch for 'spares' . Well it has been ticking away for the last couple of years on a shelf, with the second hand going round but the hands immobile, not even being able to be set as the crown won't turn in the setting position, jammed solid....

Well with isolation boredom setting in I decided to finally try to see what the problem was.....

With the hands, dial and day wheel removed we are getting nearer the problem.....


Next stage was to remove the date wheel .......


Closer but still cant see the problem....

One level lower and all is revealed....


A few more bits removed and the offending part....

The minute wheel which ........

a) a should be in one piece and not two


b) should have a full set of teeth......



At this moment I can't find a parts list for the 3703 cal. so cannot find the part number for this piece, though I suspect we are talking unicorn droppings for rarity....

I suspect that the only source would be another movement. Does anyone on here have a dead 3703 movement that they would be willing to part with? I do have a complete, but electrically non functional, Seiko 3303 movement that is available for trade....





Edited by John_D
  • Like 1

Share this post

Link to post
Share on other sites

Can't help you with another movement but thanks for the post and pictures of the detective work.

Share this post

Link to post
Share on other sites

I would have a think about other Seiko watches that use those plastic parts, I have a load of 7T32, 7T42, 7T62, and 7T92 movements which use the same date wheel, hour wheel.

I am not saying that these movements will help you, but Seiko are pretty good at making parts that jump across different movements. It could be that if you look at other movements produced around the same time as the one you are trying to fix you may be able to locate a suitable donor.

Sometimes you have to think outside the box.

Good luck with your search.

Share this post

Link to post
Share on other sites

Just noticed that an image has vanished from my original post.....:huh:

Anyway here is the elusive image...


An update on this is that I tracked down a replacement 3rd wheel to a watch parts dealer in Naples, Italy... the not so good news that, due to the Covid-19 lockdown there, the shop was shut... However with the very recent relaxation there of the lockdown, my order has now been accepted and the part 'should' be with me in the not too distant future. I'll update the thread when it arrives.....

Share this post

Link to post
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.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  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.

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...