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CYMA Pocket Watch with 775 movement

Daniel123
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Daniel123 WRT Addict

Daniel123

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Hi, I thought I’d share with the group this project. When I un-boxed the watch I immediately realised I had a few job to do, the Crystal had yellowed over time and the crown wasn’t winding. On closer inspection I found that the ‘setting leaver spring’ was broken as was the mainspring and the whole movement was not particularly clean. 
I tackled the cleaning first by hand while getting some useful advice from the forum on where to find a new setting leaver, I ordered new parts while getting on with cleaning and inspecting all parts. Rebuild was a pleasure until I realised I had Installed new mainspring upside down ‘slap head moment’. Purchased some lume powder on eBay a first for me seems to be working fine. Now checking time for a couple of days then it’s getting packed up and posted to my son for his birthday. Hope he likes his 70 year old peace of military history :)

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    • dnhb
      Loose pinion

      By dnhb · Posted

      I've gone the threadlocker route having tried the material insert approach without success. The watch runs but I'm chary about winding it more than a turn or so in case the 'repair' gives way; still, there's an element of satisfaction in getting it going at all as it's a single bridge/plate design which I could only assemble dial side up & then flip over in order to be able to insert the 3 securing screws. The reassembly took a number of attempts over many hours but at least I got considerable manipulation practice & the experience will come in useful in future. I'm now faced with my ignorance about how to manually set the the time as this key-wound Waltham pocket watch doesn't have the usual pull-out stem facility. All I can think of doing is to adjust the regulator arm until it catches up with the current time & then revert to the central position.....
    • AndyGSi
      Omega Cosmic 2000 split stem question

      By AndyGSi · Posted

      So the crown should be a 0.9mm thread as you've ordered. How do you know the thread size is wrong if you've not removed the broken stem yet?
    • AndyGSi
      Where it begins

      By AndyGSi · Posted

      You'll need to be extra careful with the Citizen as Information along with Parts and Donors are pretty much none existing. You'll probably end up having to use a stem extender, that's hoping there's enough stem left in the movement.
    • Embezelled
      Where it begins

      By Embezelled · Posted

      Thank you! That's immensely helpful. I appreciate the trouble you've taken. The initial hiccup aside, I do hope to treat this watch with great care and respect. I've certainly learned one thing not to do, and also just the general need to start out very slowly and very carefully.    
    • Shadaar
      Omega Cosmic 2000 split stem question

      By Shadaar · Posted

      166.128 is the case reference number and the Omega logo is on the crown. This is the watch.
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