Jump to content

Watch Hand Alignment (Mechanical vs Quartz)


Recommended Posts

Hello all, hope you're well.

I've been working on Miyota movements for years and usually if the movement doesn't have a calendar i'll move the hour hand backwards to twelve before installing the minute hand.  I got told this before but I've never fully understood why.... can anyone clear that up for me?

As opposed to any calendar or quartz movement that i'll always install with the hour hand adjusted forwards to twelve.

Thanks for your time and patience 

  • Like 1
Link to comment
Share on other sites

I've had to repair quartz watches (needed the money) and as I understand the mechanism, with a basic hour-minute-second SMQ it has no mainspring or any other works to offer resistance that would damage the train, so it won't matter which way you turn to set it.  But I am in the habit of setting clockwise because it is safest if you do not know the watch well.

With additional complications such as calendar functions, those are meant to revolve a certain way and you are correct to only set them in a clockwise direction. 

  • Like 1
Link to comment
Share on other sites

It's mostly always installing from new, and the Miyota movements I refer to are all mechanical by the way (82S0, 8N24 etc).

I believe it is something to do with when the gear train re-engages after changing the from time setting mode.  Thanks for your replies, great community on here!👍

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.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • That's very interesting information. I haven't tried to see if my bombé jewel holes have olive holes but I think I should be able to tell on the larger jewels at least. See if I get a chance to have a look later today. This little story was very comforting to read for a "bungler" like myself. That success isn't a given even for a pro. Thanks for sharing!
    • I forgot that I said I would do that. Will take some tomorrow and post them up post haste.
    • I've seen some really nice early 20th century pieces where all the jewels, including center wheel, were convex. Definitely to reduce friction. It can be quite hard to tell if a jewel has olive holes, especially on small sizes, but that again reduces friction- as well as accommodates small misalignments better. Why they aren't used more often? I imagine it was found that at a certain point in the train the actual advantage became negligible, and the added cost on high production movements is why it's not seen on those, just higher-end pieces.   I did an experiment on a little 5x7"' AS 1012 a few years back. These things run OK sometimes, but often are absolute dogs. And AS made gajillions of them. I had a NOS novelty watch in for a service, ran OK flat, massive drop in amplitude vertical. Made like 3 staffs for it trying different pivot sizes, no change. Tried high quality (not Seitz) convex/olive jewels, no change- the original were flat, but could have been olive hole. Same for the pallet fork, then escape wheel, no change. Probably had 20 hours in the watch, new staff and new hole jewels through the escape wheel, no difference in running. Just a dog of a movement. But if I were making a watch I would use them, just because.
    • When Nicklesilver mentioned the use of them on non coned pivots on older high end watches closer to the escapement.  That suggested to me  probably fourth wheels and possibly third wheels. The square shoulder rotatating on the much smaller surface area of a dome as opposed to a flat jewel surface. I'm curious as to why they are not used predominantly?
    • That's what I thought, but as I said, it makes sense. See if any of our pros will have something to add.
×
×
  • Create New...