Bifora 84/1

 
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Bifora 84/1

Description

The Bifora 841 is an early german pallet anchor movement, made in Schwäbisch Gmünd in the watch factory of Joseph Bidlingmaier..

This movement is classical in all aspects - not only from the craftsmanship with the slanted briges and their angled borders, but also of its construction:

The non shock-protected screw balance has got its hairspring connected to the balance cock. Its effective length can be regulated by a long regulator arm. With the pallet lever escapement and all gears beared in jewels, a good precision is guaranteed.

Bifora 84/1 dial side

Bifora 84/1 dial side

On the dial side, there’s a yoke winding system. On later movements, Bifora often uses a rocking bar winding system, maybe due to cost reduction.

Technical data

Manufacturer:Bifora
Caliber:84/1
Number of jewels:15
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): none
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:3 hole(s)
Features:s
Functions:hour, minute, decentral second
A/h:18000
Size:8 3/4''' (measured: 19,2mm)
Production period:1918 - 1934
Literature: Flume: 1947 21