The Seiko 1N01 quartz watch movement is a three-hand (hour/minute/sweep second) ladies’ caliber measuring 4¾ × 6½ lignes, with dimensions of 10.80 × 14.50 mm, a thickness of 2.20 mm, and an overall movement height of 4.14 mm. It uses 110/65/20 hand sizes, contains 0 jewels, operates on a 379 battery, and comes with stem part number 351-807, which has a 0.70 mm (tap 12) thread.
