Baumgartner 930

 
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Baumgartner 930

Description

One of the ever made smallest pin lever movements is the Baumgartner caliber 930. According to Flume, it has got a diameter of only 6 34 lignes; if you measure it, it’s exactly 7 lignes. With its construction, it very much reminds of small anchor lever movements, such as the ETA 2412.

With seventeen jewels, among them a number of deck jewels, which are fixed in kind of chatons, with a coupling winding mechanism and partially polished plates, it is certainly among the best Baumgartner pin lever movements.

As usual on Baumgartner, this movement does not have a minute wheel, but the minute- and hour hands are indirect driven by the mainspring barrel.

Baumgartner 930 dial side

Baumgartner 930 dial side

Technical data

Manufacturer:Baumgartner
Caliber:930
Number of jewels:17
Escapement:Pin lever
Balance types: Nickel anular balance
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, large driving wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:3 hole(s)
Functions:hour, minute
A/h:18000
Size:7'''
Literature: Flume: K3 60

Usage gallery

Buler ladies' watch

Buler ladies' watch