Buser 8 3/4

 
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Buser 8 3/4

Description

The Buser 8 34 caliber probably originates from the 1920ies. It is a midsize manual wind movement, well executed with pallet lever escapement and bimetallic screw balance.

base plate

base plate

The golden or gilt toned base plate shows an impressive degree of finshing, all important bearings contain synthetic rubies and each gear has got an individual deepening on the base plate.

gear train

gear train

The gear train is the classical one with center minute wheel, third wheel, seconds wheel at 6 o’clock and steel escapement wheel. As you can see, the execution of the gears is very well!

side view of the gear train

side view of the gear train

Especially the side view shows, that the gears are not only simply cut out, but they have an interesting three-dimensional structure. This is an indication, that this movement was one of the better ones.

Its non shock protected bimetallic screw balance beats with 18000 A/h and regulates a classical swiss pallet lever movement.

The usage of a bimetallic balance allows the temperature compensation of the steel hairspring.

Buser 8 3/4: Dial side

Buser 8 3/4: Dial side

On the dial side of this movement, you see the yoke winding system and the setting lever spring, which is very short and in a characteristical shape, but does not really work as a spring.

Usage gallery

Elly Watch ladies' watch  (case missing)

Elly Watch ladies' watch (case missing)

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

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