The Seiko 5M42-0B80 is a watch model based on the 5M42 movement.
Parts List
| 290P01HN03 | crystal - mineral crystal |
| 40MD4NN1 | crown - crown |
| 40MD4NA1 | crown - crown |
| 40MD4NS1 | crown - crown |
| FH2981B01 | case back gasket - case back gasket |
| EC0060B0 | case back gasket - crown gasket |
| 86574980 | crystal gasket - crystal gasket |
| 80600549 | pusher - button (2h) |
| 80600541 | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| 43V8JB | band - band |
| 43V8KB | band - band |
| 43V8LB | band - band |
| 4F22KB | band - leather band |
| 43V8KB-LKG | band - link |
| 43V8LB-LKG | band - link |
| 43V8LB-BK1S | clasp - buckle |
| 43V8LB-PB1 | clasp - parts for buckle |
| 43V8KB-BK1G | clasp - buckle |
| 43V8KB-PB1 | clasp - parts for buckle |
| 3AA125F0ANG | others - second hand |
| 3AA125F0ANS | others - second hand |
| 2BB115L4BAF | others - minute hand |
| 1BB077L2BAF | others - hour hand |
| 0351651 | others - winding stem |
| 81400709 | others - button spring clip |
| 81350540 | others - button spring |
| 5M420B8098Z | others - case |
| 0866640 | others - holding ring for dial |
| 0878729 | others - date dial |
| 0878731 | others - date dial |
| 0878732 | others - date dial |
| 5M420B8061Z | others - case |
| 5M420B80 | others - case back |
| 5M420B8075Z | others - case |
| 5M420D28XG14 | others - dial |
| 5M420D28XL14 | others - dial |
| 5M420D28XN14 | others - dial |
| 5M420D28XS13 | others - dial |
| 5M420D38XS14 | others - dial |
| 5M425 | others - machine code |
| A200BS | others - push pin |
| 2BB125L2BCH | others - minute hand |
| 81400829 | others - button spring clip |
| 0Z0060B01 | others - crown and stem gasket |
| 2BB125L2BCJ | others - minute hand |
| 2BB125L2BCK | others - minute hand |
| 1BB080L0BCH | others - hour hand |
| 1BB080L0BCJ | others - hour hand |
| 1BB080L0BCK | others - hour hand |
Caliber 5M42
