RRM7309-CS

RRM7309-CS is a watch calibre by Ball Watch Company.

It is an automatic mechanical movement, which is produced in-house and has chronometer precision. Complications are hours, minutes, sweep seconds and date. The power reserve is 80 hours.

In contrast to the calibre RRM7309-C this movement is equipped with an anti-magnetic silicon balance spring.

Description:

Self-winding movement, chronometer, anti-magnetic silicon balance spring

Functions:

Hours, minutes, sweep seconds and date

Data:

Ø 34.24 mm, H 5.16 mm
25 Jewels
28,800 A/h

Movements | Automatic movements | Ball calibres