The Seiko 1N00-5A50 is a watch model based on the 1N00 movement.
Parts List
| K00W88JN01 | crystal |
| K00W88JN | crystal |
| 30M98NA1 | crown |
| 0H1400B01 | case back gasket - case back gasket |
| 0H1400B0 | case back gasket |
| B5585G | band |
| B5585G-LKG | band - link |
| B5585K-LKG | band - link |
| B5585K | band |
| B5585G-BK4G | clasp - clasp |
| B5585K-BK4G | clasp - clasp |
| 0351807 | others - winding stem |
| 82821600 | others - case ring |
| 1N000A88XB14 | others - dial |
| 1N000A88XB24 | others - dial |
| 1N000A88XG14 | others - dial |
| 1N000A88XG24 | others - dial |
| 1N000A88XS14 | others - dial |
| 1N000A98XS19 | others - dial |
| 1N000A98XS29 | others - dial |
| 1N000B08XB14 | others - dial |
| 1N000B08XG14 | others - dial |
| 1N000D40XB14 | others - dial |
| 1N000D40XG14 | others - dial |
| 1N000D50XG14 | others - dial |
| 1N005A50 | others - case back |
| 1N005A5025 | others - case |
| 1N005A5025Z | others - case |
| 1N009 | others - machine code |
| B080AS | others - push pin |
| 2CE047L0BDG | others - minute hand |
| 05Y34AGM | others - minute hand |
| 05Y34NGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 04Y09DGM | others - minute hand |
| 05Y02FGH | others - hour hand |
| 1CA035A0BNG | others - (24 hour hand) |
| 05Y02NGH | others - hour hand |
| 05Y03DGH | others - hour hand |
Caliber 1N00
