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.