The Seiko 4N01-5090 is a watch model based on the 4N01 movement.
Parts List
| BA2A91JN02 | crystal - crystal |
| 6K40A6SNWC | crown - crown |
| 6K40A6SNWB | crown - crown |
| 6K40A6SNWD | crown - crown |
| 0F195BAA1 | case back gasket |
| 44Z2JZ | band - band |
| 44Z3JZ | band - band |
| 44Z5LZ | band - band |
| 44Z2JZ-LK2 | band - link |
| 44Z2LZ-LK4 | band - link |
| 44Z3JZ-LK2 | band - link |
| 44Z5LZ-LK4 | band - link |
| 44Z2LZ | band - band |
| 44Z2LZ-BKF | clasp - buckle |
| 44Z2LZ-PB2 | clasp - parts for buckle |
| 44Z5LZ-BKF | clasp - verschluss stahl |
| 44Z5LZ-PB2 | clasp - parts for buckle |
| 44Z2JZ-BKF | clasp - buckle |
| 44Z2JZ-PB2 | clasp - parts for buckle |
| 44Z3JZ-BKF | clasp - buckle |
| 44Z3JZ-PB2 | clasp - parts for buckle |
| 44P3LBBK | clasp |
| 1BG035LABDG | others - hour hand |
| 1BG035LABDS | others - hour hand |
| 2BG057LABDG | others - minute hand |
| 1BG040L2BDG | others - hour hand |
| 3BA075F1BNG | others - second hand |
| 3BA075F1BNS | others - second hand |
| 2BG055LBBDS | others - minute hand |
| 2BG055LBBDG | others - minute hand |
| 4N01509061D | others - case |
| 0351155 | others - winding stem |
| 81190075 | others - bracelet fixing pipe |
| 81604219 | others - bracelet fixing pin |
| 4N01509061B | others - case |
| 4N01509061C | others - case |
| 4N01509061A | others - case |
| 82837690 | others - case ring |
| 4N015090 | others - case back |
| 4N011231XG13 | others - dial |
| 4N011231XL14 | others - dial |
| 4N011231XS24 | others - dial |
| 4N011241XS14 | others - dial |
| 4N0161 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |