This video details the servicing of an AS 1900/01 Watch movement with a calendar mechanism.Mark LovickRelated postsBulk Reluming Watch HandsJune 3, 2016Venus 175 Chronograph ServiceApril 13, 2016IWC FA Jones Watch Movement ServiceApril 19, 2016 (Cancel Reply)You must be logged in to post a comment.Previous postAutomatic Rotor Bearing Replacement for Valjoux 7750 and ETA 2892-A2Next postRotor Bearing Replacement – ETA 2824