The Seiko 1N01-0H20 is a watch model based on the 1N01 movement.
Parts List
| 155A02JN02 | crystal - crystal (inorganic) |
| 35MV4NA1 | crown - crown |
| 35MV4NS1 | crown - crown |
| 0E150NA1S | case back gasket - case back gasket |
| 44L2KQ | band - band |
| 44L2JQ | band - band |
| 44L2JQ-LK3 | band - link |
| 44L2KQ-LK3 | band - link |
| 44L2KQ-BKL | clasp - buckle |
| 44L2JQ-BKL | clasp - buckle |
| 2BG065L0BDS | others - minute hand |
| 1BG045L0BDS | others - hour hand |
| 3BA075F0BNG | others - second hand |
| 3BA075F0BNS | others - second hand |
| 0351807 | others - winding stem |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82821520 | others - case ring |
| 1N010H2025Z | others - case |
| 1N010H20 | others - case back |
| 1N011F28XS24 | others - dial |
| 1N011F28XS33 | others - dial |
| 1N019 | others - machine code |
| 1N010H2029Z | others - case |
| EZ0035B01 | others - crown and stem gasket |
| 1BG045L0BDG | others - hour hand |
| 2BG065L0BDG | others - minute hand |
| 07T11DGH | others - hour hand |
Caliber 1N01
