The Seiko 1N01-0K90 is a watch model based on the 1N01 movement.
Parts List
| 150A11JN02 | crystal |
| 6M30D2SNW1 | crown - crown (3h) |
| 0F150BA1S | case back gasket - case back gasket |
| F1R0JZ | band - band |
| F1R1JZ | band - band |
| 3BA075F1BNS | others - second hand |
| 0351807 | others - winding stem |
| DB004BAD1 | others - crown and stem gasket |
| 1BA045A2BNS | others - hour hand |
| 1N010K9001 | others - case |
| D1601139 | others - bracelet fixing pin |
| 1N010K9002 | others - case |
| 1BC040A1BNS | others - hour hand |
| 2BA060A0BNS | others - minute hand |
| 2BC060A0BNS | others - minute hand |
Caliber 1N01
