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Bifora 934SI

 
Bifora 934SI

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 in-house Bi-shock shock protection system.
 

dial side view

 

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
Features s
Functions Hour, minute, small second
Beats per hour 18000
Size 91/4'''
Image in Flume Werksucher  1958 b.35

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