The Seiko 1N00-5D50 is a watch model based on the 1N00 movement.
Parts List
| REEN04JN01 | crystal |
| REEN04JN | crystal |
| 30MH2NA1 | crown |
| 0H1700B01 | case back gasket - bezel gasket |
| 0H1700B0 | case back gasket |
| BHJ79G | band |
| 82824940 | others - case ring |
| 1N001E40XS14 | others - dial |
| 1N005D50 | others - case back |
| 1N005D5025 | others - case |
| 1N009 | others - machine code |
| A120AS | others - push pin |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 2CA050F0BNG | others - minute hand |
| 1CA030F0BAA | others - hour hand |
Caliber 1N00
