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Bifora 84/1

 

Bifora 84/1Bifora 84/1

Description

The Bifora 84/1 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 sideBifora 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

ManufacturerBifora
Caliber84/1
Number of jewels15
EscapementAnchor with pallets
BalanceNickel screw balance
Shock protection(s)none
Balance cock directionclockwise
Hairspring studfixed
Regulator typeLong regulator arm
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel
Winding mechanismyoke
Setting lever spring3 holes
Featuress
FunctionsHour, minute, small second
Beats per hour18000
Size83/4''' (measured: 19,2 mm)
Production time1918 - 1934
Image in Flume Werksucher 1947 21
Bifora 84/1BiforaBifora84/11918 - 19348 3/4''''''Bifora 84/115 Jewels, 8 3/4'''''', 18000 A/h, s
Factsheet

 

This movement was donated by Klaus Brunnemer. Thank you very much!