SE308 31 Semag Quartz Watch Movement SE 308/31 Semag (Swiss Ebauches) Quartz Movement is a 3 hand (hour/minute/sweep second) movement with date at the 3 o'clock position. This ladies movement is an 8 3/4 ligne movement, dimensions are 19.40 mm in diameter with a height of 2.95 mm. This is a 0 jewel movement, using a 362 battery with hand dimensions 120/70/18 (hour/minute/sweep second).