ISA 331 Quartz Watch Movement

ISA 331
11 ½ ligne
25.60 mm (dia.)

3 hands (120/70/20), date @ 3, movement
height 2.50 mm, total height 3.96 mm, 5
jewels, swiss assembled, yellow plates, cell
371

3 hands (120/70/20), date @ 6, height 2.50
mm, total height 3.96 mm, 5 jewels, swiss
assembled, yellow plates, cell 371