The Seiko 1N01-0H50 is a watch model based on the 1N01 movement.
Parts List
| 150A14JR02 | crystal - crystal |
| 6M40A2SNG1 | crown - crown |
| 6M40A2SMW1 | crown - crown |
| 0F150NA1S | case back gasket - case back gasket |
| 44R2JB | band - band |
| 44R2KB | band - band |
| 44R2LB | band - band |
| 44R2JB-LK3 | band - link |
| 44R2KB-LK5 | band - link |
| 44R2LB-LK3 | band - link |
| 44R2JB-BKI | clasp - buckle |
| 44R2JB-PB1 | clasp - parts for buckle |
| 44R2KB-BKL | clasp - buckle |
| 44R2KB-PB1 | clasp - parts for buckle |
| 44R2LB-BKI | clasp - buckle |
| 44R2LB-PB1 | clasp - parts for buckle |
| 2BF060LABDS | others - minute hand |
| 2BF060LABDG | others - minute hand |
| 1BF040L0BDS | others - hour hand |
| 3BA075F0BNG | others - second hand |
| 3BA075F0BNS | others - second hand |
| 1BF040L0BDG | others - hour hand |
| 0351807 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82821740 | others - case ring |
| 1N010H5061Z | others - case |
| 1N010H50 | others - case back |
| 1N011F58XG14 | others - dial |
| 1N011F58XS13 | others - dial |
| 1N011F58XS24 | others - dial |
| 1N019 | others - machine code |
| 1N010H5098Z | others - case |
| 1N010H5075Z | others - case |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1N01
