The Seiko 1N00-5B00 is a watch model based on the 1N00 movement.
Parts List
| K03N34JM01 | crystal |
| K03N34JM | crystal |
| 30M98NA1 | crown |
| 0H1400B01 | case back gasket - case back gasket |
| 0H1400B0 | case back gasket |
| B5581C | band |
| B5581C-LKG | band - link |
| B5581C-BK4S | clasp - clasp |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 82821600 | others - case ring |
| 1N000D30XG14 | others - dial |
| 1N005B00 | others - case back |
| 1N005B002E | others - case |
| 1N009 | others - machine code |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 2CH052A0BNG | others - minute hand |
| 05Y23NGM | others - minute hand |
| 1CH037A0BNG | others - hour hand |
| 05Y23NGH | others - hour hand |
Caliber 1N00
