The caliber AS 1726 was produced in Switzerland by Fabrique D’Ebauches A. Schild S.A. aka ASSA. This mechanism was produced as an ébauche, or unfinished movement.
Manufacturer: A. Schild S.A.
Caliber Number: 1726 / 1727
Movement Type: Mechanical, manual-wind
Vibrations Per Hour: 21,600 vph
Power Reserve: 38 hours
Diameter: 8 3/4”’ / 19.4mm
Lift Angle: 52 degrees
Hands: 1.20, 0.65, 0.18
Shock Absorber: Incabloc
Balance: Screw balance
Functions: Hours, minutes, small seconds
Country of Manufacture: Switzerland
At one point in time, A. Schild S.A. was one of the largest Swiss movement houses. The company merged with ETA in the late 1970’s as a result of the quartz crisis.
Although the caliber 1726 is more common, there is a caliber 1727 which is essentially the same movement but with a bevelled edge, offering a more finished look.
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