The Seiko 5M42-0E20 is a watch model based on the 5M42 movement.
Parts List
| 270P03TNC3 | crystal - crystal |
| 45MP0NA1 | crown |
| FH2980B0A | case back gasket - case back gasket |
| 86571500 | crystal gasket - crystal plastic gasket |
| 86581741 | crystal gasket - plastic gasket for crystal |
| 86177800 | bezel gasket - plastic gasket for bezel |
| 80600541 | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| 44E2LB | band - band |
| 44E2LB-LKG | band - link |
| 44E2LB-BK2S | clasp - buckle |
| 44E2LB-PB1 | clasp - parts for buckle |
| 3AX130FPAFW | others - second hand |
| 2AB110A6BAW | others - minute hand |
| 1AB080A8BAW | others - hour hand |
| 200P14JDEB | others - crystal(case back) |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82292344 | others - bezel |
| 81400709 | others - button spring clip |
| 81350540 | others - button spring |
| 0351651 | others - winding stem |
| 5M420G98XS14 | others - dial |
| 5M425 | others - machine code |
| 5M420E207YZ | others - case |
| 5M420E20 | others - case back |
| 0866636 | others - holding ring for dial |
| 0878729 | others - date dial |
| 44E2LB-EPG | others - endpiece |
| 0Z0060B01 | others - crown and stem gasket |
| 81400829 | others - button spring clip |
Caliber 5M42
