DuRoWe 7522/4 (INT)

 
DuRoWe 7522/4 (INT)

DuRoWe 7522/4 (INT)

Description

The copper-colored caliber 7522/4 from the Deutschen Uhrenrohwerke (DuRoWe) in Pforzheim, Germany, belongs to their last series of selfwindig movements. With the standard diameter of 11 1/2 lignes, the glucydur balance, the modern quarter rotor and the Rufa-Anti-Shock protection system, it represents the development status of the early 1970ies, when it was produced.

The only noteable fact is probably the clamp mechanism for the dial (at position 4 and 10), which allows a quick release of the dial.

Interesting detail: Among other manufactureres, OSCO used that movement, too, as you can see below. But in former years, OSCO even made their own movements.

Technical data

Manufacturer:DuRoWe
Caliber:7522/4 INT
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): Rufa-Anti-Shock
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Features:SCD,QG,RDR,AUT
Functions:hour, minute, second, day, selfwinding
A/h:21600
Size:11 1/2'''
Literature: Flume: K3N1 -

Usage gallery

Osco Automatic gents watch

Osco Automatic gents watch