AS 568

 
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AS 568

Description

When exactly the AS 568 was available, is unclear, but it might have been the 1930ies, since on the dial side, the Ebauches Trust hallmark is used.

It is a contemporary cylinder movement with a diameter of 10 12 lignes, which was suitable for the upcoming popular, still rather small, wristwatches.

base plate

base plate

As you would expect from AS, all critical bearings contain rubies.

You also see, that it is massively constructed, since the gears each have different engraving depths in the base plate.

gear train

gear train

The AS 568 uses the standard gear train for a cylinder movement: Mainspring barrel, directly driven center minute wheel, third wheel, fourth wheel and finally the cylinder wheel.

side view of the gear train

side view of the gear train

The cylinder wheel with its sharp teeth always interferes with the balance, more precisely with its cylinder. It’s easy to understand, that the resulting fraction impacts the accurancy.

The flat anular balance beats with 18000 A/h, which can be adjusted with a long regulator arm and scale. Of course, the balance wheel is not yet shock protected.

AS 568: Dial side

AS 568: Dial side

The AS 568, which uses the old AS hallmark and additionally the Ebauches Trust hallmark on the dial side, has got a very modern yoke winding system, whose ratchet sits on the movement side.

The complete balance system including cock and both bearings are made as a detachable unit for servicing. You see this on the bottom of the dial side.

Technical data

Manufacturer:AS
Caliber:568
Number of jewels:10
Escapement:Cylinder
Balance types: Nickel anular balance
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Construction type:solid construction
Winding mechanism:yoke winding system
Setting lever spring:1 hole(s)
Functions:hour, minute
A/h:18000
Size:10 1/2''' (measured: 23,3mm)
Inventory number:19006

Usage gallery

anonymous gents watch

anonymous gents watch

This movement and watch is a kind donation from Christoph Reiner. Thank you very much for your great support of the movement archive!