No image yet, please contribute.

Shanghai Watch Factory Caliber A581

Last updated:

No image yet, please contribute.

Manufacturer Shanghai Watch Factory (上海)
Caliber Number A581, A-581, 581
Jewels 17
Beats per hour 18,000 vph
Power Reserve 40 hours
Anti-Shock System None
Hand-Windable? Yes
Hacking Seconds? Yes
Functions Hours, minutes, central seconds
Country of Manufacture China
Known Models
(Add yours to the comments below…)

The Shanghai caliber A581 is a 17 jewels (17 zuan) manual wind mechanical movement. It is based off the A. Schild caliber AS 1194. This caliber was produced from circa March 1958 – 1967. This caliber does not have the following: no anti-shock protection system; no adjustment screws on the balance wheel; no fixing screw on the main bridge.

Similar movements in this family include the Shanghai caliber A611 with an anti-shock system, as well as the caliber A623 with a date complication.

Instagram Feed Instagram Feed Instagram Feed Instagram Feed Instagram Feed Instagram Feed