The Seiko 1N01-0HN0 is a watch model based on the 1N01 movement.
Parts List
| 180A03JN02 | crystal - crystal (inorganic) |
| 6M30D2SNW1 | crown - crown (3h) |
| 0F160BA1S | case back gasket - case back gasket |
| E140JB | band - band |
| E140JB-LK00 | band - link |
| E140JB-BK00 | clasp - clasp |
| 1BA045A9BNS | others - hour hand |
| 2BA070A5BNS | others - minute hand |
| 3BA080F2BNS | others - second hand |
| 81190875 | others - bracelet fixing pipe |
| 82822700 | others - case ring |
| 1N010HN001C | others - case |
| 0351807 | others - winding stem |
| DB004BAD1 | others - crown and stem gasket |
| 81607029 | others - bracelet fixing pin |
| 1N010PJ4XL13 | others - dial |
| 1N010PJ4XS13 | others - dial |
| 1N010PJ4XY13 | others - dial |
| 1N010PJ4XZ13 | others - dial |
| 1N019 | others - machine code |
| E140JB-BKPP | others - spring bar for buckle/clasp |
| E140JB-LKPN | others - pin for link |
Caliber 1N01
