Jump to content

Help identify this Omega PW caliber

Dmitry

By Dmitry
in Watch Repairs Help & Advice

 Share

Recommended Posts

Dmitry WRT Addict

Dmitry

Posted
Posted (edited)

Hello,

I have come across an Omega pocket watch (18 size, 7 jewels) and need your help identifying the caliber.

Serial number according to https://serial-number-decoder.co.uk/omega/omega.htm mentions 1912 production year, and that's about it.

I need to order a few parts, but without the caliber I won't be able to order the missing crown wheel or a new balance staff.

While looking great on the ourside, solid silver case and all, insider there was a nasty surprise, I have never seen a watch so dirty or corroded. I suspect salt water ingress, and then someone seems to have dunk the whole watch in some sort of oil.

Any help is highly appreciated.

Thank you.

P1030375.JPG

P1030374.JPG

P1030372.JPG

1642988650974.jpg

Edited by Dmitry
added size
Dmitry WRT Addict

Dmitry

Posted
  • Author
Posted
8 hours ago, Klassiker said:

Is this it?

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&2&2uswk&Omega_19LOBNN

YYep, looks like it! I think the 26513 stamp refers to the keyless setting swiss patent. I noticed the other Regina PW I posted about earlier has the same construction, which makes sense as the calibers are only a few years apart and Regina Watch Co was replaced with Omega later on.

  • Thanks 1
Klassiker Distinguished Member

Klassiker

Posted
Posted
16 hours ago, Dmitry said:

YYep, looks like it! I think the 26513 stamp refers to the keyless setting swiss patent. I noticed the other Regina PW I posted about earlier has the same construction, which makes sense as the calibers are only a few years apart and Regina Watch Co was replaced with Omega later on.

Interesting, thanks for posting it.

 Share
Go to topic listing

  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • jhoho202
      About repair watch's jewel.

      By jhoho202 · Posted

      First of all, thank you for the pdf file of the book on how to replace a gem. So, if there is a problem with the ruby in the movement, should I buy a new or used movement and replace it? When I watch videos on YouTube of people fixing used watches, I feel like there should be a way to buy a gem. Is there no way to buy it?
    • praezis
      Parts sourcing for FHF 180 movement

      By praezis · Posted

      I suppose @donutdan is not forced to earn his living by repairing watches.  I suppose he does it as a hobby and wants to gain experience, to get better in watchmaking and time is not the issue. Then @donutdan should rather try to repair the damage instead of swap parts from a maybe intact other movement. Swapping parts is not watchmaking. And often swapped parts are not the expected solution of all problems. All mentioned damages are repairable. Frank  
    • Malocchio
      Chinese tools debate

      By Malocchio · Posted

      Yeah I figured that one out when I googled and realized that my spindle is actually from Horia. It's smooth with no screwable cap.
    • JohnR725
      Parts sourcing for FHF 180 movement

      By JohnR725 · Posted

      I am puzzled by something a snipped out something from your image and what exactly disassemble tell us? my confusion is the symbol for FHF looks like image I have below year symbol as a star and righted this instant are not finding what that means? I suppose we could use the fingerprint system to verify it really is what it claimed to be. Size itself is really interesting there's almost no watches in that particular size. Then were missing details in the photograph above like diameter of movements to verify it really is the size and are missing the setting components.   went to the bestfit book looking at the symbols didn't see it. Look at the link below I did find it back to the bestfit book and yes it really is there https://reference.grail-watch.com/documents/history-of-ebauches-sa/ then bestfit book says lists the size as 10 1/2. one of the problems with vintage watches is finding parts yes a donor watch would be good.
    • Simeon
      Oiling Dubois Depraz chrono module pivots (Omega Speedmaster Reduced)

      By Simeon · Posted

      Actually, this could be the issue. Drag from the module could be overcoming the cannon pinion. It was definitely not at the point that the driving wheel was loose on the cannon pinion, it took a little bit of effort to rotate it when applying the grease. Maybe I need to look again at applying oil to the pivots.    Yeah, it's very annoying. I don't want to give up on it, so back on with it over again until I catch a break. 
×
×
  • Create New...