The Seiko 1N01-5D80 is a watch model based on the 1N01 movement.
Parts List
| RE4A62LN03 | crystal - crystal |
| 30MF8NA1 | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| 3056KB-LK5 | band - link |
| 3056KB | band - metal band |
| 2BE050L0BDG | others - minute hand |
| 3BA050F1BNG | others - second hand |
| 0351807 | others - winding stem |
| 81190075 | others - bracelet fixing pipe |
| 81607199 | others - bracelet fixing pin |
| 82834920 | others - case ring |
| 1N015D8001 | others - case |
| 1N015D80 | others - case back |
| 1N011L78XS14 | others - dial |
| 1N019 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
| 1BE032L0BDG | others - hour hand |
Caliber 1N01
