Description
The caliber series 72xx was produced in the 1970ies and produced in many different versions, even one with a high-beat (36000 A/h) chronometer.
The caliber 7290 is a low-beat movement with only 21600A/h. It uses a bidirectional selfwinding mechanism and contains a hacking feature. The date can be corrected in the first crown position, the weekday needs turning the hands between 18:00 and midnight.
Technical data
Manufacturer: | Citizen |
Caliber: | 7290 |
Size: | 12 1/2''' |
A/h: | 21600 |
Number of jewels: | 23 |
Escapement: | Pallet lever |
Balance types: |
Glucydur anular balance |
Shock protection(s): |
Parashock 1 (Citizen) |
Balance bearing / direction hairspring: | Clockwise |
Moveable stud: | yes |
Adjust mechanism: | Hairspring key |
Features: |
|
Production years: | 1968-???? |