Family: A
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.
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Display Type
Analog
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
DiscontinuedMANUFACTURE
In-houseLAUNCH YEAR
1958CALIBER FAMILY
A