27 jewels80h power reserve28,800 vph (4 Hz)
The 7M21A is an automatic movement manufactured by Hangzhou Watch Company. It measures 33mm in diameter and 5.73mm thick, operates at 28800 vph, and contains 27 jewels. The movement delivers over 80 hours of power reserve and displays hours, minutes, small seconds, and date. It is used in contemporary Hangzhou Watch Company timepieces.
Last updated 15 Sep 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
27 jewels
Power Reserve
80h
Frequency
28,800 vph (4 Hz)
Diameter
33mm
Height
5.73mm
Display Type
Analog
COMPLICATIONS
Date
FEATURES
Small Seconds
QUICK FACTS
FOR WATCH DEALERS
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