1E20 Hattori Seiko Watch Movement Japan Watch Movement
- Outside Diameter: 3 3/4 x 4 Ligne or 9.0 x 9.35mm
- Movement 2.70mm thick
- The height from the bottom of the watch movement to the top of the minute pinion is 3.6mm
- Requires watch cell: 335
- 2 handed movement
- Requires watch hands: hour .90, and minute .45mm
- Has 5 jewels
- Stem: 354930, Tap 13
- Includes watch stem
- Genuine Seiko quartz movement
- Japanese assembled
- Movement marked 1E20B