DuRoWe 7420/2 (INT)
Description
The DuRoWe caliber 7420/2 is a common 11 1/2 ligne handwinding movement with 17 jewels, which is constructed in a familiar way. It is a direct relative of the 7410/2 and differs only by the size of the main plate.
It uses a three-leg balance, which is beared in two Rufa-Anti-Shock protection systems and whose hairspring is connected to a moveable stud and adjusted by a long direct regulation arm.
The center second is directly driven and the minute wheel is in the center.
On the dial side, you see the yoke winding system.
DuRoWe 7420/2 dial side
Technical data
| Manufacturer: | DuRoWe |
| Caliber: | 7420/2 |
| 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 |
| Construction: |
|
| Winding mechanism: | yoke winding system |
| Setting lever spring: | 3 hole(s) |
| Features: |
|
| Production period: | 1972 - ~1983 |
| References: |
Flume: K3N1 - |
Usage gallery
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