AUTOMATIC • Analog • Hands: Hours, Minutes, Seconds
Jewels
21
Reserve
42 h
Frequency
19,800 vph (2.8 Hz)
Diameter
29 mm
Height
-
About this caliber
Introduced in 1952; automatic movement with pellaton winding system. Total production approx. 13.000 examples between '52 and '58. Date version is caliber 8521.