Description
The Durowe 50 caliber dates back to the 1940s and was a form movement for small, fashionable ladies’ watches at the time.
It is (for the time being) fully equipped with bearing jewels, 15 in total, and it is aesthetically very pleasing with its beveled edges and a gold-colored finish, which harmonizes beautifully with the stron red jewels. The latter are of high quality, with well executed oil deposits.
Technically, there is nothing to complain about either; the rather large gears promise high operational reliability and good accuracy.
The design of the gear train follows the usual standard with the mainspring barrel, center minute wheel, third wheel, seconds wheel, and finally the filigree steel escape wheel.
The balance of this 5 1/4 ligne movement, which beats with 18,000 semi-oscillations per hour, has compensating screws on the rim, but is not yet shock-proof.
A long regulator arm with a scale on the balance cock is used to adjust the beat rate.
On the dial side you can clearly see the yoke winding mechanism and the Durowe hallmark.
In the lab
Timegrapher result
After a cleaning, this movement ran so strong, that the balance bounces and so falsified the timegrapher reports.| horizontal positions | |||
|---|---|---|---|
| dial up | -3 s/d | 310° | 0.6ms |
| dial down | -3 s/d | 308° | 0.5ms |
| vertical positions | |||
| crown right (12 up) | -90 s/d | 254° | 0.3ms |
| crown up (3 up) | -20 s/d | 254° | 0.0ms |
| crown left (6 up) | +10 s/d | 273° | 0.4ms |
| crown down (9 up) | -70 s/d | 278° | 0.2ms |
Technical data
| Manufacturer: | DuRoWe |
| Caliber: | 50 |
| Size: | 5 1/4''' (measured: 12,8 x 19,3mm) |
| A/h: | 18000 |
| Number of jewels: | 15 |
| Escapement: | Pallet lever |
| Balance types: | Nickel screw balance |
| Shock protection(s): | none |
| Balance bearing / direction hairspring: | Counterclockwise |
| Moveable stud: | no |
| Adjust mechanism: | Long regulator arm |
| Construction: |
|
| Construction type: | solid construction |
| Winding mechanism: | yoke winding system |
| Setting lever spring: | 2 holes |
| Attachment of setting lever: | screwed/plugged |
| References: | Feilner: Bl. 11 413 Flume: 1947 118 |
| Inventory number: | 24018 |
Other movements from DuRoWe
- DuRoWe 55
- DuRoWe 61 / Kienzle 070/27
- DuRoWe 70
- DuRoWe 72
- DuRoWe 75 (INT)
- DuRoWe 89
- DuRoWe 202
- DuRoWe 260
- DuRoWe 270
- DuRoWe 275
- DuRoWe 322
- DuRoWe 410
- DuRoWe 422
- DuRoWe 435
- DuRoWe 450 / Kienzle 071/17
- DuRoWe 552
- DuRoWe 585
- DuRoWe 590/1
- DuRoWe 753
- DuRoWe 861 / Timex M67
- DuRoWe 870 / Timex M84
- DuRoWe 900 / Timex M82
- DuRoWe 1032
- DuRoWe 1055
- DuRoWe 1132
- DuRoWe 1162
- DuRoWe 1285
- DuRoWe 1977-4 (INT)
- DuRoWe 1980 (INT)
- DuRoWe 7410/2 (INT)
- DuRoWe 7420/2 (INT)
- DuRoWe 7422/2 (INT) / Dugena 2113
- DuRoWe 7522/4 (INT)
- DuRoWe 7525 (INT)







