Description
The Guba 25 was launched between 1953 and 1957. It was completely unmarked, but could be identified thanks to the scraching of a watchmaker on the dial plate and the Flume Werksucher from 1957.
It uses seventeen jewels, among them one cap jewel on the dial side. The gold-tone nickel screw balance is not shock protected. The size of the movement is the formerly common 5 3/4 x 8 3/4 lignes.
The Guba 25 was made in different versions and probably over a longer time.
Technical data
| Manufacturer: | Guba |
| Caliber: | 25 |
| Size: | 5 3/4 x 8 3/4''' |
| A/h: | 18000 |
| Number of jewels: | 17 |
| Escapement: | Pallet lever |
| Balance types: |
Nickel screw balance |
| Shock protection(s): |
Farr I none |
| Balance bearing / direction hairspring: | Counterclockwise |
| Moveable stud: | yes |
| Adjust mechanism: | Hairspring key |
| Construction: |
|
| Winding mechanism: | yoke winding system |
| Setting lever spring: | 3 hole(s) |
| References: |
Flume: 1952 33 |