The Seiko 1N00-5E80 is a watch model based on the 1N00 movement.
Parts List
| REEN22JN01 | crystal |
| REEN22JN | crystal |
| 30M98NA1 | crown |
| 0H1900B01 | case back gasket - case back gasket |
| 0H1900B0 | case back gasket |
| Z5470G | band |
| Z5470G-LKG | band - link |
| Z5470G-BK4G | clasp - clasp |
| A120BS | others - push pin (for lb) |
| 1N001K10XG14 | others - dial |
| 1N001K10XS14 | others - dial |
| 1N005E80 | others - case back |
| 1N005E8025 | others - case |
| 1N009 | others - machine code |
| 82831040 | others - case ring |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 2CE055L0BDG | others - minute hand |
| 05Y10DGM | others - minute hand |
| 1CE040L0BDG | others - hour hand |
| 06Y51DGH | others - hour hand |
Caliber 1N00
