The Seiko 1N01-5B30 is a watch model based on the 1N01 movement.
Parts List
| RE1A94JR02 | crystal - crystal |
| 6K40A6SNWB | crown - crown |
| 0F170NA1S | case back gasket - case back gasket |
| NL | band |
| 4453JZ | band - band |
| 4453JZ-LKS | band - link |
| 4453JZ-BK2S | clasp - buckle |
| 4453JZ-PB2 | clasp - parts for buckle |
| 2BG057LABDG | others - minute hand |
| 1BG040L2BDG | others - hour hand |
| 3BA075F0BNG | others - second hand |
| 0351807 | others - winding stem |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82837840 | others - case ring |
| 1N015B3061Z | others - case |
| 1N015B30 | others - case back |
| 1N011E88XS24 | others - dial |
| 1N019 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1N01
