Family: A17 jewels
Manual-winding caliber developed and manufactured by Shanghai Watch. The A581 beats at 18,000 vph with 17 jewels and offers approximately 40 hours of power reserve. It lacks anti-shock protection, a common characteristic of movements from this era. Production ran from approximately 1958 to 1967.
Last updated 15 Sep 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Jewel Count
17 jewels
Display Type
Analog
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
DiscontinuedMANUFACTURE
In-houseLAUNCH YEAR
1958CALIBER FAMILY
ACOUNTRY
ChinaFOR WATCH DEALERS
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