The Seiko 1N00-5H40 is a watch model based on the 1N00 movement.
Parts List
| RE5W04JU01 | crystal |
| RE5W04JU | crystal |
| 30MA2NA1 | crown - crown |
| 0F230NA1S | case back gasket - case back gasket |
| 0A2300B01 | case back gasket |
| B1835C | band |
| B1835C-LKG | band - link |
| B1835L-LKG | band - link |
| B1835L | band |
| B1835L-BK4G | clasp - clasp |
| B1835C-BK4G | clasp - clasp |
| 0351807 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82832100 | others - case ring |
| 1N002C70XS19 | others - dial |
| 1N002C78XS19 | others - dial |
| 1N005H40 | others - case back |
| 1N005H4079 | others - case |
| 1N005H4079Z | others - case |
| 1N009 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
| 2CE065L4BDG | others - minute hand |
| 1CE040L2BDG | others - hour hand |
Caliber 1N00
