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.
Technical details
Movement
AUTOMATIC
Display
Analog
Jewels
21
Power reserve
42 hours
Frequency
19,800 vph (2.8 Hz)
Hands
Hands: Hours, Minutes, Seconds
Diameter
29 mm
Height
-
Parts
-
IWC IWC 852 - Movement Specifications & Details | WatchAtlas