The Seiko 7N42-0BL0 is a watch model based on the 7N42 movement.
Parts List
| 280P02SN02 | crystal - crystal (sapphire) |
| 8K50ZMSNGA | crown - crown |
| 8K50ZMSNWA | crown - crown |
| FE298BAD2 | case back gasket - case back gasket |
| 86177922 | crystal gasket - plastic gasket for crystal |
| 86177921 | crystal gasket - plastic gasket for crystal |
| 86178900 | bezel gasket - plastic gasket for bezel |
| 33N4XB | band - band |
| 33D4JB | band - band |
| 33D4KB | band - band |
| 33D4YB | band - metal band |
| 33D4JB-LK | band - link |
| 33D4KB-LK | band - link |
| 33D4YB-LK | band - link |
| 33D4ZB-LK | band - link |
| 33N4XB-LK | band - link |
| 33D4ZB | band - metal band |
| 33D4ZB-BK | clasp - buckle |
| 33D4ZB-PB | clasp - parts for buckle |
| 33D4YB-BK | clasp - buckle |
| 33D4YB-PB | clasp - parts for buckle |
| 33D4JB-BK | clasp - buckle |
| 33D4JB-PB | clasp - parts for buckle |
| 33D4KB-BK | clasp - buckle |
| 33D4KB-PB | clasp - parts for buckle |
| 33N4XB-BK | clasp - buckle |
| 33N4XB-PB | clasp - parts for buckle |
| 1AF075L4BEG | others - hour hand |
| 2BF110L4BEG | others - minute hand |
| 3AX125F3AEG | others - second hand |
| 3AX125F3AES | others - second hand |
| 1AF075L4BES | others - hour hand |
| 2BF110L4BES | others - minute hand |
| 7N420BL001B | others - case |
| 85932721 | others - bezel |
| 89967861 | others - decorative pin |
| 7N420BL0 | others - case back |
| 82738200 | others - case ring |
| 7N420BL002A | others - case |
| 85932729 | others - bezel |
| 7N420BL002B | others - case |
| 89967869 | others - decorative pin |
| 81190075 | others - bracelet fixing pipe |
| 0351892 | others - winding stem |
| 81606619 | others - bracelet fixing pin |
| 89967864 | others - decorative pin |
| AD006BAD1 | others - crown and stem gasket |
| 7N420BL003B | others - case |
| 7N420BL004B | others - case |
| 7N420BL005B | others - case |
| 85932724 | others - bezel |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420CS0XS13 | others - dial |
| 7N420CS8XB13 | others - dial |
| 7N420CS8XL13 | others - dial |
| 7N420CS8XS13 | others - dial |
| 7N420CS8XS24 | others - dial |
| 7N420CS8XS34 | others - dial |
| 7N423 | others - machine code |
| 84352764 | others - dial ring |
| 84352765 | others - dial ring |
| 84352766 | others - dial ring |
| 84352767 | others - dial ring |