The Seiko 1N00-5F90 is a watch model based on the 1N00 movement.
Parts List
| BA3N46JN01 | crystal |
| BA3N46JN | crystal |
| 30M98NA1 | crown |
| 0H1800B01 | case back gasket - case back gasket |
| 0H1800B0 | case back gasket |
| Z5469G | band |
| Z5469G-BK3G | clasp - clasp |
| 0351807 | others - winding stem |
| 82830940 | others - case ring |
| 1N001K00XB14 | others - dial |
| 1N001K00XG14 | others - dial |
| 1N005F90 | others - case back |
| 1N005F9025 | others - case |
| 1N009 | others - machine code |
| DZ0041B01 | others - crown and stem gasket |
| 2CA052A0BNG | others - minute hand |
| 05Y02NGM | others - minute hand |
| 1CA035A0BNG | others - (24 hour hand) |
| 05Y02NGH | others - hour hand |
Caliber 1N00
