Gruen 515SS = Jeambrun 26D
Description
This movement was rebranded or got an additional name and is originally a Jeambrun 26D.
Here you can find the original movement
Technical data
| Manufacturer: | Gruen |
| Caliber: | 515SS |
| Size: | 11 1/2''' |
| A/h: | 18000 |
| Escapement: | Pallet lever |
| Balance types: | Glucydur screw balance (two legs) |