The SS1 is a manual-winding movement produced by Shanghai Watch. It operates at 18,000 beats per hour with 17 jewels and delivers approximately 40 hours of power reserve. The movement was manufactured from the 1950s through the 1970s and serves as the base for later variants in the SS family. It is discontinued.
Last updated 15 Sep 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Jewel Count
17 jewels
Power Reserve
40h
Frequency
18,000 vph (2.5 Hz)
Display Type
Analog
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
DiscontinuedMANUFACTURE
In-houseBASED ON
Shanghai Watch A581CALIBER FAMILY
SSFOR WATCH DEALERS
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