CH 28-520

AUTOMATIC • Analog • Chronograph: Chronograph, Column wheel Hands: Hours, Minutes

Jewels
29
Reserve
55 h
Frequency
28,800 vph (4.0 Hz)
Diameter
30 mm
Height
-

About this caliber

Stripped down CH 28-520 chronograph functions with hours, minutes and seconds counter. Column wheel. Balance spring is Spiromax.

Technical details

Movement
AUTOMATIC
Display
Analog
Jewels
29
Power reserve
55 hours
Frequency
28,800 vph (4.0 Hz)
Hands
Chronograph: Chronograph, Column wheel Hands: Hours, Minutes
Diameter
30 mm
Height
-
Parts
-