The Seiko 5M42-0A89 is a watch model based on the 5M42 movement.
Parts List
| 290PX5TNC3 | crystal - crystal |
| 200P02HN | crystal |
| 290PX5TN | crystal |
| 50M48NA1 | crown - crown |
| 50M45NA1 | crown |
| FH2980B0A | case back gasket - case back gasket |
| EC0060B0 | case back gasket - crown gasket |
| 86581741 | crystal gasket - plastic gasket for crystal |
| 86565320 | crystal gasket - plastic gasket for crystal |
| 86178900 | bezel gasket - plastic gasket for bezel |
| 80600481 | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| 4FG3LB | band - band |
| 4FG5XB | band - leather band |
| 4FG5XB-LB | band - leather without buckle |
| 2AG120L0BDA | others - minute hand |
| 1AG080L2BDA | others - hour hand |
| 3AA125F0ANG | others - second hand |
| 81400709 | others - button spring clip |
| 81350540 | others - button spring |
| 0351651 | others - winding stem |
| 200P02HN03 | others - crystal(case back) |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82289504 | others - bezel |
| 5M420A89SAZ | others - case |
| 5M420A89 | others - case back |
| 0866636 | others - holding ring for dial |
| 0878729 | others - date dial |
| 4FG5XB-EP9 | others - endpiece |
| 5M420D98XS14 | others - dial |
| 5M425 | others - machine code |
| 84326045 | others - dial ring |
| 0Z0060B01 | others - crown and stem gasket |
| 81400829 | others - button spring clip |
Caliber 5M42
