ISA 2331/103 Date 6 ISA 2331/103-6, IST 2331/103-6 is an ISATRONIC 3 hand, gents quartz watch movement with date at the 6 o'clock position. This is a 11 1/2 ligne movement, 25.60 mm in diameter with a height of 2.95 mm. This is a Swiss parts movement, 0 jewel, hand dimensions are 120/70/20 (h/m/s), uses a 371 battery.