The Seiko 1N01-0HY0 is a watch model based on the 1N01 movement.
Parts List
| 200A31SN02 | crystal - crystal (sapphire) |
| 6K35C8SNW1 | crown - crown (3h) |
| 0F190BAD2 | case back gasket - case back gasket |
| D329AB | band - band |
| D329ABLK | band - link |
| H18L12SA01B | clasp - clasp |
| 3BA075F0BNS | others - second hand |
| 1BG042LABDS | others - hour hand |
| 2BG062LABDS | others - minute hand |
| 82823140 | others - case ring |
| AC004BAD1 | others - crown and stem gasket |
| 0351807 | others - winding stem |
| 1N010HY002A | others - case |
| 1N010HY0 | others - case back |
| 1N010PR0XA25 | others - dial |
| 1N019 | others - machine code |
| D329ABBKPN | others - pin for buckle/clasp |
| D329ABBKPP | others - spring bar for buckle/clasp |
| D329ABEP | others - endpiece |
| S130BS | others - push pin |
| H12045S | others - hairpin (band) |
Caliber 1N01
