Description
The Bifora caliber 934 SI is a direct relative of the Caliber 934, with the difference, that it uses a direct driven decentral seconds indication at position “6” and uses only seven rubies.
This movement is probably a more modern one, since it uses a screw-less balance.
The construction is rather simple but well made with a rocking bar winding mechanism below the dial and an inhouse Bishock shock protection system.
Technical data
Manufacturer: | Bifora |
Caliber: | 934 SI |
Size: | 9 3/4''' |
A/h: | 18000 |
Number of jewels: | 7 |
Escapement: | Pallet lever |
Balance types: |
Nickel anular balance |
Shock protection(s): |
Bidlingmaier (Bifora) |
Balance bearing / direction hairspring: | Clockwise |
Moveable stud: | no |
Adjust mechanism: | Hairspring key |
Construction: |
|
Construction type: | pillar construction |
Winding mechanism: | rocking bar winding system |
Setting lever spring: | 4 hole(s) |
Features: |
|
Production period: | 1946 - 1958 |
References: |
Flume: 1958 b.35 |
Production years: | 1946-1958 |