21 jewels72h power reserve28,800 vph (4 Hz)
The 1A10B is an automatic movement manufactured by the Hangzhou Watch Company. It measures 31mm in diameter and 6.5mm thick, operates at 28800 vph, and contains 21 jewels. The movement provides a 72-hour power reserve and features sweep seconds. It remains in production for the company's domestic market.
Last updated 15 Sep 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
21 jewels
Power Reserve
72h
Frequency
28,800 vph (4 Hz)
Diameter
31mm
Height
6.5mm
Display Type
Analog
FEATURES
Sweep Seconds
QUICK FACTS
FOR WATCH DEALERS
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