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Bifora 934 SI


Bifora 934 SIBifora 934 SI


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.

Bifora 934 SI dial sideBifora 934 SI dial side


 Technical data

Caliber934 SI
Number of jewels7
EscapementAnchor with pallets
Shock protection(s)Bidlingmaier (Bifora)
Balance cock directionclockwise
Hairspring studfixed
Regulator typeHairspring key
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel
Construction typepillar construction
Bridge shapeAxe, 4 gears
Winding mechanismRocking bar
Setting lever spring4 holes
FunctionsHour, minute, small second
Beats per hour18000
Production time1946 - 1958
Image in Flume Werksucher 1958 b.35
Bifora 934 SIBiforaBifora934 SI1946 - 19589 3/4''''''Bifora 934 SI7 Jewels, 9 3/4'''''', 18000 A/h, s


Usage gallery

Bifora TOP ladies' watchBifora TOP ladies' watch