The Seiko 1N00-5K50 is a watch model based on the 1N00 movement.
Parts List
| SA0A16JR02 | crystal |
| SA0A16JR | crystal |
| 35M1TNA1 | crown |
| 0E170NA1S | case back gasket - case back gasket |
| 0E170NA1 | case back gasket |
| BHJ89G | band |
| BHA60K | band - leather band |
| BHA60G | band |
| BHJ89K | band |
| 2CH052A2BAA | others - minute hand |
| 1CH032A0BAA | others - hour hand |
| A120BS | others - push pin (for lb) |
| 1N003B70XS14 | others - dial |
| 1N003B78XS14 | others - dial |
| 1N003B90XS19 | others - dial |
| 1N003B98XS19 | others - dial |
| 1N005K50 | others - case back |
| 1N005K5025 | others - case |
| 1N005K5025Z | others - case |
| 1N009 | others - machine code |
| 82833400 | others - case ring |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 1CE030L0BDG | others - hour hand |
| 05Y32DGH | others - hour hand |
| 2CE050L0BDG | others - minute hand |
| 05Y32DGM | others - minute hand |
Caliber 1N00
