At one point in the 1930’s Cyma decided to upscale in the quality of their movements. They used an in-house shock protection system called the Cyma-Flex and most were beautifully decorated. This watch is in dirty, but good condition and will get a full service.
Movement looks to be in very good condition.
The dial is in good original condition. The old compound is very sable and looks nice so I won’t mess around with that!
I remove the dial and hands to reveal a very nicely decorated base plate.
If you look at the crown wheel it has a little mark to show you it unscrews clockwise.
Old mainspring.
I have cleaned the movement and it’s ready to come back together.
I fit the cap jewels and see that the balance moves freely.
I fit the old mainspring.
The click spring is securely fitted with a screw.
Here you can see the gear train back in the movement.
Movement back together and ticking!
The modern oils are too fine and too much power is hitting the balance, resulting banking.
I find another mainspring that is 0.01 mm thinner.
That’s more what I want to see!
I fit the setting/winding mechanism back in place. All the springs are machined and very nice.
Dial and hands go back onto the movement.
Movement goes back into the case.
I always appreciate a good dust cover!
2 Responses to Service Cyma calibre 414
Good evening,
Calibre 414 did not have an antishock system. However calibres K and Ka did have the ‘K’ antishock system. Cymaflex was launched at MuBa in 1950.
Regards,
AntMat (Mr. Cyma)
Hi,
Thanks for the information, I have read it was introduced in 39.
Best regards,
Mitka