Help identifying wristwatch movement

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  • #49232
    randy
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    • Topics Started: 39
    • Total Posts: 594

    I don’t have a shot of it…but it’s from a Genievre .
    Under the glance the plate is marked ” Co 234 ” and the C wraps around the “o”.
    At first I thought it to be a Cortebert,..but they are marked “Cort”.
    I’m not finding anything that has that marking in any of my books.

    I need a balance and mainspring.

    Thanks for any detective work on my behalf !

    Randy

    #59515
    gerene
    Participant
    • Topics Started: 16
    • Total Posts: 377

    Hello Randy,

    I guess you are referring to Cyma 234, in wich case the O is actually a globe inside the C.
    The dimensions for the mainspring are 1.50 x 10.5 x 0.11 x 350mm (GR3985)
    I don’t have any info on the balance and I guess they may be hard to find.

    Jan

    #59516
    chris mabbott
    Participant
    • Topics Started: 119
    • Total Posts: 1525

    Randy, I have quite a few Swiss mainsprings, I think the majority of one bunch is for wrist watches. It’s pot luck but if you have a size and better yet, a size, style and photo, let me know and i’ll have a root around..

    The same holds true for staffs… I think you have my email?

    #59517
    randy
    Participant
    • Topics Started: 39
    • Total Posts: 594

    Jan, Chris,
    Thank you both.
    Jan that makes sense,..yes it “cradles” the globe

    Chris I’ll see what I can now source, and if I need additional help ( parts ), I’ll be sure to get back to you.

    Best regards,

    Randy

    #59518
    randy
    Participant
    • Topics Started: 39
    • Total Posts: 594

    Hey everyone.
    I’ve now ordered two staffs for this from separate sources.
    One specifically for the CYMA 234, and another for a Cyma-Tavannes 234.
    Both have larger shaft dimensions than the original, and the overall length is off as well ( longer ). Here’s a snapshot of the marking that’s on the watch.

    http://i.ebayimg.com/00/s/MTA3OVgxNjAw/z/t4AAAOSwfcVUHD33/$_57.JPG

    Are we sure it’s Cyma ???

    Thanks

    #59519
    chris mabbott
    Participant
    • Topics Started: 119
    • Total Posts: 1525

    Longer is better randy, as you already know, so you’ll be facing a little bit of reduction work… I feel ya :(

    #59520
    randy
    Participant
    • Topics Started: 39
    • Total Posts: 594

    I tried with the 1st one to get it to the proper dimensions..just could get it there, but I’m going to attempt it again.
    I would really like to get the proper staff though..this is for a clients watch,..and it’s pretty small,…so no room for error.

    #59521
    gerene
    Participant
    • Topics Started: 16
    • Total Posts: 377

    Randy, I don’t think it is a Cyma 234. From your picture it seems that your movement is a pin pallet escapement. The Cyma 234 does not have a pin pallet escapement. The Cyma logo I was referring to is this one

    .

    Unfortunately I cannot tell you what your movement is. Could you post a picture of the whole movement (both sides)?

    Jan

    #59522
    gerene
    Participant
    • Topics Started: 16
    • Total Posts: 377

    Randy, could you also give the size of the movement?

    Jan

    #59523
    randy
    Participant
    • Topics Started: 39
    • Total Posts: 594

    Thanks Jan…I’ll get photos posted tomorrow..today’s time is already packed full. Thanks for the help !

    Best,

    Randy

    #59524
    randy
    Participant
    • Topics Started: 39
    • Total Posts: 594
    #59525
    gerene
    Participant
    • Topics Started: 16
    • Total Posts: 377

    Sorry Randy, I don’t know what movement this could be. It definetely is not a Cyma 234. The escape wheel looks like a pin-pallet escape wheel though the dial says “ancre” and 17 rubis. I don’t know if the dial on your watch says that as well. Pin pallet movements usually do not have a lot of jewels but Oris and Timex did make pin pallets with jewels so it seems.
    Sorry that I can’t help you more on this one :(

    Jan

    #59526
    randy
    Participant
    • Topics Started: 39
    • Total Posts: 594

    Thanks Jan..I’ll keep digging !

    Best regards,

    Randy

    #59527
    gerene
    Participant
    • Topics Started: 16
    • Total Posts: 377

    You are welcome. Please let us know if you find out what it is, you’ve got me curious now. ;)

    Jan

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randyHelp identifying wristwatch movement