The Seiko 1N00-5D89 is a watch model based on the 1N00 movement.
Parts List
| RE4W24JN01 | crystal |
| RE4W24JN | crystal |
| 30MA2NA1 | crown - crown |
| 0A1500B01 | case back gasket |
| EZ0035B0 | case back gasket |
| Q5054K | band |
| Q50547 | band - band |
| Q50547-LKG | band - link |
| Q5054K-LKG | band - link |
| Q5054K-BK4G | clasp - buckle |
| Q50547-BK4G | clasp - buckle |
| 1N001G38XS13 | others - dial |
| 1N005D89 | others - case back |
| 1N005D8925 | others - case |
| 1N009 | others - machine code |
| Q50547-EPG | others - endpiece |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82822040 | others - case ring |
| 0351807 | others - winding stem |
| Q5054K-EPG | others - endpiece |
| EZ0035B01 | others - crown and stem gasket |
| 2CE042L0BDG | others - minute hand |
| 04Y12DGM | others - minute hand |
| 1CE030L4BDG | others - hour hand |
| 04Y12DGH | others - hour hand |
Caliber 1N00
