Omega 340

Omega'sfirstautomatic movement, producedfrom 1942 to 1949andfrom 1949with newcaliberdesignations.See alsoOmegacal: 330 -355th

The movementof theimagewith serial number: 10 412 960,is madeaprox in: 1945.

Data: Omega cal: 340 (28.10 RA PC AM 17p)

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  17 jewels, automatic wind, sub second.
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  S: = 28,10 mm.
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  H: = 4,80 mm.
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  N: = 19800.
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  Power reserve: 42 h.

Versions untill 1949. Marked on the plate:

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  30.10 RA PC AM 17p: sub second, from -49 = cal: 330.
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  30.10 RA PC JUB AM 17p: sub second, chronometer, from -49 = cal: 331.
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  30.10 RA PC T1 AM 17p: sub second, from -49 = cal: 332
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  28.10 RA PC AM 17p: sub second, from -49 = cal: 340
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  28.10 RA PC JUB AM 17p: sub second, chronometer, from -49: cal: 341.
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  28.10 RA PC T1 AM 17p: sub second, from -49 = cal: 342
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  28.10 RA SC PC: center second, from -49, cal: 350
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  28.10 RA SC PC T1 AM 17p: center second, from -49, cal: 351