Bifora 934SI
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| Bifora 934SI |
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Description
The Bifora caliber 934SI 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.
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| dial side view |
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Technical data
| Manufacturer | Bifora |
| Caliber | 934SI |
| Number of jewels | 7 |
| Escapement | Anchor with pallets |
| Balance | Nickel |
| Shock protection(s) | Bidlingmaier (Bifora) |
| Balance cock direction | clockwise |
| Hairspring stud | fixed |
| Regulator type | Hairspring key |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel |
| Construction type | pillar construction |
| Bridge shape | Axe, 4 gears |
| Winding mechanism | Rocking bar |
| Setting lever spring | 4 holes |
| Features | s |
| Functions | Hour, minute, small second |
| Beats per hour | 18000 |
| Size | 93/4''' |
| Image in Flume Werksucher | 1958 b.35 |
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| Factsheet |
Usage gallery
