Photo of the watch
still to be verified
still to be verified
Type: automatic
Jewels: 24
Frequency: 19,800 vph
Date: Yes
Chronometer: Yes
In brief
Behind the Constellation "Pie Pan" dial sits this calibre: 24 jewels, a date and an official chronometer certificate. With the 551, it counts among the most admired automatics Omega has built.
Short history
The 551 and the 561 — the latter with a date — both arrived in 1959 carrying chronometer certification. More than a million certified examples were made, which makes this probably the most admired run of movements in Omega's history.
Why it matters
These are reckoned among the best automatics Omega ever made: a long power reserve, accuracy certified at the factory, and a reliability that still holds today after a proper service.
Watches that used it
- Constellation "Pie Pan"