Omega 284

Example movement, serial no: 15 573 728, aprox: 1958, the total production of the 284 was 108.000 pcs.

Data: Omega 284 (30 SC T4 PC AM 17 p).

• 17 Jewels, manual wind, sweep second.
• Size: 30.0 mm.
• H: = 5.10 mm.
• N: = 18.000 A/h.
• Power reserve: 43 h.

Versions with sub second:

• 30: 15 jewels, bi-metallic compensation balance no shock protection (1939).
• 30T1: 15 jewels, bi-metallic compensation balance, no shock protection (1941).
• 30T2: 15 jewels, bi metallic compensation balance, no shock protection (1941).
• 30T2PC: 15 jewels, incabloc, monometallic balance (1941).
• 30T2RG: 17 jewels, chronometre, no shock protection (1943).
• 260: = 30T2PC from 1949, rose gold plated movement (1943).
• 261: 17 jewels, antimagnetic (1943).
• 262: = 30T2RG from 1949 (1943).
• 265: 15 jewels, antimagnetic (1949).
• 266: 17 jewels, antimagnetic (1950).
• 267: 17 jewels, antimagnetic, bewelled main plate (1957).
• 268: 17 jewels, antimagnetic, ring balance, Breguet hairspring (1960).
• 269: 17 jewels, antimagnetic, ring balance, flat hairspring (1963).

Versions with center second:

• 30SC: 16 jewels, bi-metallic comp. balance, no shock protection, c-sec (1941).
• 30SCT1: 16 jewels, bi-metallic comp. balance, no shock protection, c-sec (1941).
• 30SCT2: 16 jewels, bi-metallic comp. balance, no shock protection, c- sec (1941).
• 30SCT2PC: 17 jewels, incabloc, monometallic balance (1943).
• 30SCT2RG: 17 jewels, chronometre, no shock protection (1947).
• 280: = 30SCT2PC from 1949.
• 281: = 30SCT2RG from 1949.
• 283: 17 jewels, antimagnetic (1950).
• 284: 17 jewels, antimagnetic, bewelled main plate (1957).
• 285: 17 jewels, ring balance, Breguet hairspring (1960).
• 286: 17 jewels, ring balance, flat hairspring (1963).