ISA 317/30 ISA 317/30, IST 317/30, ISA 317/103, IST 317/103 is an ISATRONIC 3 hand, gents quartz watch movement with date at the 3 o'clock position. This is a 11 1/2 ligne movement, 25.60 mm in diameter with a height of 3.20 mm. This is a Swiss Parts movement, with nickel plates, hand dimensions are 120/70/20 (h/m/s), uses a 371 battery.