Calibre 352 — chronometer tuning for the centre-seconds bumper

In brief

Chronometer adjustment reached the centre-seconds bumpers in 1950 with the 352, using the eccentric regulator Omega had already fitted to the sub-seconds calibres. Nothing else moves: 17 jewels, 19,800 vph.

Short history

The 352 dates to 1950 and sits inside the 28.1 mm centre-seconds series, showing the same push for accuracy that Omega was applying in parallel to the sub-seconds branch with calibres such as the 333 and the 343.

Watches that used it

• Omega automatic watches of 1950