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 |
| Size: | 11 1/2''' |
| A/h: | 21600 |
| 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: |
|
| References: |
Flume: K3N1 - |
Usage gallery
Osco Automatic gents watch