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Baumgartner 911

 
Baumgartner 911
 

Description

The Baumgartner (BFG) caliber 911 is modern built ladies' watch movement, which contains a sophisticated date indication mechanism.

Its balance is secured in two KIF Protechoc systems and contains a finger for the escapement. The escapement anchor in located in one jewel on the movement side; on the dial side, there's just a metal bearing. On this way, the unusual number of five jewels is achieved.

The center second is driven directly; the minute wheel is located de-centrally, which allows a flatter construction and larger diameters for balance and mainspring. The hands are driven on the dial side by the mainspring.

The winding mechanism is a yoke winding mechanism, which is normally a feature of "better" movements, but the BFG 911 is in fact a "better" pin lever movement, too, which sometime even reminds of a anchor movement.

dial side view
dial side view


The date mechanism is unusually complicated, with gears, that contains teeth's in different lengths, with springs and moveable jumpers. Because of this, the date switches semi-fast in only 45 minutes and can be corrected semi-fast, too, by turning back to 10:30pm.

date mechanism
date mechanism

Technical data

Manufacturer Baumgartner
Caliber 911
Number of jewels 5
Escapement pin lever
Balance Nickel
Shock protection(s) KIF Protechoc
Balance cock direction counterclockwise
Hairspring stud moveable
Regulator type Hairspring key
Movement construction Fork
Escapement wheel, Fourth wheel, Third wheel, Large driving wheel, Mainspring barrel
Features SCD,QG,RDR
Functions Hour, minute, second, day
Beats per hour 21600
Size 81/2'''

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