The Seiko 5M42-0H80 is a watch model based on the 5M42 movement.
Parts List
| 290P24HR03 | crystal - crystal |
| 45MB8NS1 | crown - crown stahl |
| FH2980B0A | case back gasket - case back gasket |
| 86565320 | crystal gasket - plastic gasket for crystal |
| 86178450 | bezel gasket - plastic gasket for bezel |
| A35A04SMS0A | pusher - button |
| 4798AM | band - band |
| 4798JM | band - band |
| 4798AM-LK5 | band - link |
| 4798JM-LK5 | band - link |
| 4798JM-BKF | clasp - buckle |
| 4798JM-PB1 | clasp - parts for buckle |
| 4798AM-BKF | clasp - buckle |
| 4798AM-PB1 | clasp - parts for buckle |
| 1AA065F2BSB | others - hour hand |
| 1AA065F2BSM | others - hour hand |
| 2AX110F6BSB | others - minute hand |
| 2AX110F6BSM | others - minute hand |
| 3AA135F0AAD | others - second hand |
| 3AA135F0AAE | others - second hand |
| 0351651 | others - winding stem |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BAD1 | others - crown and stem gasket |
| 81190055 | others - bracelet fixing pipe |
| 5M420H8061 | others - case |
| 82295389 | others - bezel |
| 81606539 | others - bracelet fixing pin |
| 5M420H80 | others - case back |
| 5M420H8061W | others - case |
| 5M420H8061X | others - case |
| 5M420H8061Y | others - case |
| 5M420H8061Z | others - case |
| 0866636 | others - holding ring for dial |
| 0878729 | others - date dial |
| 0878730 | others - date dial |
| 5M420L90XB19 | others - dial |
| 5M420L90XS19 | others - dial |
| 5M420L98XB19 | others - dial |
| 5M420L98XG19 | others - dial |
| 5M420L98XL19 | others - dial |
| 5M420L98XR19 | others - dial |
| 5M420L98XS19 | others - dial |
| 5M425 | others - machine code |
| 84328344 | others - dial ring |
| 84328345 | others - dial ring |
| 84328346 | others - dial ring |
| 84328347 | others - dial ring |
| 84328348 | others - dial ring |
| 5M420H8061A | others - case |
| 5M420H8061V | others - case |
| 0Z0060B01 | others - crown and stem gasket |
Caliber 5M42
