SE311 41 Semag Quartz Watch MovementSE 311/41 Semag (Swiss Ebauches) Quartz Movement is a 3 hand (hour/minute/sweep second) movement with day and date at the 3 o'clock position. This gents movement is an 11 1/2 ligne movement, dimensions are 25.60 mm in diameter with a height of 3.68 mm. This is a 0 jewel movement, using a 371 battery with hand dimensions 120/70/18 (hour/minute/sweep second).