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.