Omega R 17.8 15p
- No: 10 216 117, manufactured aprox: 1945.
- Without second.
Data:
- 15 jewels, manual wind.
- Size: 17.8 x 22 mm.
- H: = 3,30 mm.
- N: = 21.600 A/h.
- Power reserve: 45 h.
Versions until 1949:
- R 17.8 15p: rhodium plated bridges, 1940.
- R 17.8 17p: rhodium plated bridges, 1944.
- R 17.8 SC 16/17p rhodium plated bridges, 1942.
- R 17.8 AM 17p: rhodium plated bridges, antimagnetic, 1946.
- R 17.8 SC AM 17p: rhodium plated bridges, sweep second, antimagnetic, 1946.
- R 17.8 PC AM 17p: rose gold plated bridges, shock protection, antimagnetic, 1950.
Versions after 1949:
- 300 R: = R 17.8 17p, 1944.
- 301 R: = R 17.8 AM 17p, 1946.
- 302 R: = R 17.8 PC AM 17p, 1950.
- 310 R: = R 17.8 SC 17p, 1942.
- 311 R: = R 17.8 SC AM, 1946.
- 302: sub second, incabloc.
- 310: same as 17,8SC, from 1949.
- 311: same as 17,8SCAM, from 1949.