The 586 was derived from Cymas 15″ pocket watch movement and was used in their large wrist watches from the 1940’s up until the late 1950’s.
Cyma calibre 586 variations:
586 15J
586 K shock protected 17J
Cyma calibre: 586
- Made: aprox 1940-1958
- Made in Switzerland
- Power reserve aprox: 42h
- 15-17 Jewels
- 18000 B/A
- Lift angle 52°
- DM 33.4 mm
- H 3.4mm
Surface finish on the bridges have a high quality Côtes de Genève with rhodium plating and beveled edges. All screws are highly polished. The ratchet and crown have a starburst pattern and highly polished beveled teeth. The jewels are fitted into brass chatons (both in bridges and main plate)
Top surface finish on bridges: 9 Points
Surface finish on screws: 9 Points
Surface finish on ratchet and ratchet wheel: 8 Points
Movement Jeweling: 6-7 Points
Movement design innovation (1940): 5 points
The Cyma base plate is adorned in perlage decoration and beveled edges. Winding/setting mechanisms are nicely finished with a machined yoke spring. The screws are all highly polished. Gear train has a good finish. Setting the time feels balanced and smooth.
Base plate finish: 9 Points
Setting and winding mechanism: 9 Points
Gear-train finish: 9 Points
Movement durability: 8 Points
A nice feature is the steel ratchet wheel washer that protects the balance bridge from wear. This helps the movement durability. The ratchet click spring is fitted into a grove and screwed in place.
The Cyma calibre 586K has Cymas signature in-house shock protection Cymaflex
3* Bonus points
Just look at the workmanship of the cap jewel fitting in 586K. It is however a little strange it’s only on the gear train side. Note the beveled edge on the underside of the gear train bridge.
Cyma calibre 586 will keep excellent time when in good condition.
Accuracy: 9 points
Power reserve of 42 hours is good.
Power reserve: 7 Points
Omega calibre: 586 points summary:
Surface finish on bridges and top side of base plate: 9
Surface finish screws: 9
Surface finish on ratchet and ratchet wheel: 8
Movement Jeweling: 6-7
Movement innovative design for ca 1940: 5
Base plate finish: 9
Setting and winding mechanism: 9
Gear-train finish: 9
Movement durability: 8
Total bonus points: 3*
Accuracy: 9
Power reserve: 7
Grand total: 88-92*
Check out the service video of a Cyma calibre 586K
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