Gyromatic

Calibre Gyromatic

The Gyromatic is a historical self-winding movement by Girard-Perregaux
GP 19, 21.0 (see below: Weblinks), 21.19, 21.29, 21, 22.09, 22.19

Manufacturer:

Girard-Perregaux

Description:

Self-winding movement, bi-directional winding (with two roller freewheels)

Incabloc shock absorber

Number of parts: ?

Functions:

Central seconds / small seconds

Date

Data:

11½ lignes

D 25.6 mm, H 5.64 mm

19 - 39 jewels

18,000 A/h

Power reserve 40h

Production period:

1956-1957

Weblinks

1956 - Gyromatic Nr. 21, Der Uhrmacher - Österreichische Uhrmacherzeitung 1. April 1956, source: www.uhren-mikl.com