Jump to content

Pictoral reference for manufactors movement marks/stamps

johnrxx99
 Share

Recommended Posts

johnrxx99 Member

johnrxx99

Posted
Posted

Hi, I'm new to collecting and my starting samples are standard 60's watches. Nothing special.

I'm trying to reference them and I'm having difficulties finding out the maker of various movements. For example, I have a watch by MOD (no one has heard of but I love the dial) and it has what I determine to be marked JC 256. I trawled Ranfft to no avail. The only 256 I've found is a ETA quartz. The stylized JC is in a circle with the number below.

That's just an example. Is there a book that shows all the makers marks/stamps rather just showing watches that may contain an example. I'm looking for hieroglyphs I guess.

Many thanks for your time, John

Link to comment
Share on other sites
JohnR725 Distinguished Member

JohnR725

Posted
Posted

It might help if you give us a picture of a sample watch as it's not a straightforward easy thing.

If you're looking for who actually made the movement its typically marked under the balance wheel. But occasionally it's on the dial side and sometimes is not marked at all.

Okay here's a link that shows the common things typically the visible stuff on the plates may or may not be who actually made the movement.

https://www.welwynwatches.co.uk/movement-identification.html

 

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.

×
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • ManSkirtBrew
      1972 Bulova President "E" Sea King 11ACACB movement

      By ManSkirtBrew · Posted

      Oh nice. I have a similar wedge style stump for my staking tool, so I'll give that a shot. Thanks!
    • joelcarvajal
      Gamblin Gamsol for cleaning?

      By joelcarvajal · Posted

      Thank you all for the replies!  Very informative! True enough, the Gamsol took some time to evaporate and does leave a residue. So not all naphtha are created equal!  Need to find alternatives then. i was able to try Hexane recommended by Alex and it seems great.  I wonder what the cons are?
    • GuyMontag
      1972 Bulova President "E" Sea King 11ACACB movement

      By GuyMontag · Posted

      Yeah, I saw that in the tech sheet but I don't see how it can be adequately cleaned with the friction pinion still in place. I've accidentally pulled the arbor right out of the wheel once when I used a presto tool to try and remove it. Mark shows how he does it with the Platax tool. Those are a little too pricey for me so I got one of these from Aliexpress and I just push down on the arbor with the end of my brass tweezers. That usually gets it most of the way out and then I just grab the wheel with one hand the and the friction pinion with the other and gently rotate them until it pops off. Probably not the best way but it's seemed to work for me so far.    
    • Zedster
      Movement inserted from crytal side

      By Zedster · Posted

      Thanks, Jon Sounds like a plan. Obviously I'll have the face on so do you think gripping with the holder will create any problems, but I will check in the morning to see how feasible it is but I assume it only needs to be lightly held. As for holding the movement instead of the holder won't be possible in this scenario as one hand will be puling on the stem while the other pushes the spring down. That was my initial concern is how the hell can I do this with only one pair of hands. All the other times I've had to remove the stem hasn't been a problem, apart from the force required to release the stem from the setting lever, but now I need to fit the face and hands its sent me into panic mode. If it had the screw type release things would be a lot simpler but that's life 😀   Another thing I will need to consider is once the dial and hands are fitted and the movement is sitting in the case I will need to turn it over to put the case screws in. I saw a vid on Wristwatch revival where he lightly fitted the crystal and bezel so he could turn it over, is this the only option or is there another method?      
    • nevenbekriev
      Main spring

      By nevenbekriev · Posted

      Hi Jon, do You think that relation spring torque - amplitude is linear? I would rather guess that the amplitude should be proportional to the square of the torque. I had once idea to check it, but still haven't.
×
×
  • Create New...