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Bifora 934 SCI / Dugena 704


Bifora 934 SCI / Dugena 704Bifora 934 SCI / Dugena 704


The Bifora caliber 934 (SCI), from Dugena also called Dugena 704, is a pallet anchor lever movement with seventeen jewels, indirect driven center second hand and a rocking bar winding mechanism below the dial.

The balance is beared in a Bishock shock protection system, and the rate can be regulated by a long regulation hand on the balance cock.


 Technical data

Caliber934 SCI
Number of jewels7/17
EscapementAnchor with pallets
Shock protection(s)Bidlingmaier (Bifora)
Balance cock directionclockwise
Hairspring studfixed
Regulator typeLong regulator arm
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Center second pinion
Mainspring barrel
Construction typepillar construction
Bridge shapeAxe, 4 gears
Winding mechanismRocking bar
Setting lever spring5 holes
FunctionsHour, minute, second
Beats per hour18000
Production time1946 - 1958
Image in Flume Werksucher 1958 b.35
Bifora 934 SCIBiforaBifora934 SCI1946 - 19589 3/4''''''Bifora 934 SCI7/17 Jewels, 9 3/4'''''', 18000 A/h, SCI


Usage gallery

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