Citizen 7290

 
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Citizen 7290

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
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:SCI,QG,JG,RDR,AUT
Functions:hour, minute, second, day, week day
A/h:21600
Size:12 1/2'''