Omega 552
- Serial no: 19 994 541 (aprox: 1964).
Data:
- 24 jewels, automatic winding.
- Size: 27,9 mm.
- H: = 4,5 mm.
- N: = 19800.
- Power reserve: 50 h.
Versions without date:
- 550: 17 jewels.
- 551: 24 jewels, chronometer.
- 552: 24 jewels.
Versions with date:
- 560: 17 jewels.
- 561: 24 jewels, chronometer.
- 562: 24 jewels.
- 563: 24 jewels, quick set date.
- 564: 24 jewels, quick set date, chronometer.
- 565: 24 jewels, quick set date.
- 750: 17 jewels, day, date.
- 751: 24 jewels, day, date, chronometer.
- 752: 24 jewels, day, date.