The Seiko 5M42-0M80 is a watch model based on the 5M42 movement.
Parts List
| 290P03TNC2 | crystal - crystal |
| 8K55A2SNW1 | crown - crown weiss |
| FH2980B0A | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 86565320 | crystal gasket - plastic gasket for crystal |
| 86178690 | bezel gasket - plastic gasket for bezel |
| 80601369 | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| 4930JB | band - band |
| 4930JB-LK2 | band - link |
| 4930JB-PB2 | clasp - parts for buckle |
| 4930JB-BKD | clasp - buckle |
| 2AB125L4BSS | others - minute hand |
| 3AX130F0ASS | others - second hand |
| 1AB080L4BSS | others - hour hand |
| 5M420M8061Z | others - case |
| 0866636 | others - holding ring for dial |
| 0878729 | others - date dial |
| 0878730 | others - date dial |
| 5M420R08XL13 | others - dial |
| 5M420R08XS13 | others - dial |
| 5M425 | others - machine code |
| 84329444 | others - dial ring |
| 84329445 | others - dial ring |
| A180CS | others - push pin |
| 0351651 | others - winding stem |
| 5M420M8061Y | others - case |
| 82297229 | others - bezel |
| 5M420M80 | others - case back |
| 83200273 | others - button spring clip |
| 81350540 | others - button spring |
| 0Z0060B01 | others - crown and stem gasket |
| 81400829 | others - button spring clip |
Caliber 5M42
