After 1900 Cyma Desk Clock 15 jewels

Jimmy's Gunner

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Aug 6, 2022
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Hello members here's my first post. I hope the pictures are decent.
I bought this CYMA Swiss Clock yesterday at a charity shop in Brussels Belgium. All I know is that it's CYMA and has 15 Jewels. The alarm seems to work when I moved the hand to set time, but it's missing a way to set alarm or wind it up. Maybe some members could help advise me on how to open this clock up, and where I could possibly find parts for this old clock? I want to open it up and I noticed there's a gap at the top where the enameled body meets the back plate. I figure it's best to ask someone more knowledgeable before I start prying away and break something difficult to replace.
Thank you in advance,
-Jimmy

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JTD

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Sep 27, 2005
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Welcome to the board.

To take off the back, first remove the winder (turn it in the opposite direction to when you are winding and it will come off). Remove the hand set knob (it will just pull off) and the knurled knob on the left which I think will unscrew.

Then remove the three screws holding the back on and you should be able to lift it off.

You can easily get a knob for setting the alarm and a winder for it from any clock repairer.

Hope this helps..

JTD
 

roughbarked

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Dec 2, 2016
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The calibre R10 was a 22 ligne (49.6mm) 30hr keywind time and alarm clock manufactured from 1945 – late 60s. This calibre progressed from 7 to 10 to 11 jewels over its period of manufacture. The movement was housed in a multitude of quality casing designs.
A 15 jewel one would be top of the pack.
 

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