The Seiko 5M42-0M39 is a watch model based on the 5M42 movement.
Parts List
| 300P04HN03 | crystal |
| 8K55B6SNG1 | crown - crown |
| FE298BAD2 | case back gasket - case back gasket |
| 86178611 | crystal gasket - plastic gasket for crystal |
| 86179271 | bezel gasket - plastic gasket for bezel |
| A35A06SMG0A | pusher - button |
| 48Y8XB | band - band |
| 48Y8XB-LK5 | band - link |
| 48Y8XB-BKF | clasp - buckle |
| 48Y8XB-PB2 | clasp - parts for buckle |
| 3AA125F0ANG | others - second hand |
| 1AB075BCBNG | others - hour hand |
| 2BB115AHBNG | others - minute hand |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 5M420M396YZ | others - case |
| 82296804 | others - bezel |
| 5M420M39 | others - case back |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BAD1 | others - crown and stem gasket |
| 0866636 | others - holding ring for dial |
| 0878729 | others - date dial |
| 48Y8XB-EP2 | others - endpiece |
| 5M420P68XS14 | others - dial |
| 5M425 | others - machine code |
| 84329244 | others - dial ring |
| 0351651 | others - winding stem |
Caliber 5M42
