Omega 26.5 SOB

The Omega cal: 26.5 was manufacturedbetween1926 and1952,from 1949it was renamed to cal: 100. The 26.5 was developedin collaboration withTissot(cal:27)and there aregreat similaritiesbetween them.Winding and setting mechanismare identicalparts(notsetting lever)and isamong the works, includingcrown wheel and ratchet wheel.

The ilustrated movement, no: 7 205 777 are manufactured in aprox: 1932.

Data: Omega 26,5 SOB

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  15 jewels, manual wind, sub second.
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  Size: 26.50 mm.
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  H: = 3.95 mm.
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  N: = 18 000 A/h.
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  Power reserve: 37 h.

Versions:

• 26,5 SOB: Compensating balance (1926)
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  26,5 SOB T1: Compensating balance, minor mod (1933).
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  26,5 SOB T2: Compensating balance, minor mod (1935).
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  26,5 SOB PC T2: Compensating balance, minor mod (1940).
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  26,5 T2 PC: Compensating balance, shock protection (1940).
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  26,5 T3: Mono metallic balance, minor mod (1941).
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  26,5 T3 PC: Mono metallic balance, shock protection, minor mod (1941).
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  26,5 T3 PC T1: = cal: 100, Mono metallic balance, antimagnetic, incabloc (1943).