DuRoWe 7522/4 (INT)

DuRoWe 7522/4 (INT) | 17jewels.info - The Movement Archive

DuRoWe 7522/4 (INT)


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

Caliber:7522/4 INT
Size:11 1/2'''
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
  • SCD (direct center seconds)
  • QG (date indication (aperture))
  • RDR (date corrector)
  • AUT (selfwinding)
References: Flume: K3N1 -

Usage gallery

DuRoWe 7522/4 (INT): Osco Automatic gents watch

Osco Automatic gents watch