The Seiko 5M42-0G90 is a watch model based on the 5M42 movement.
Parts List
| 280PX5TNC3 | crystal - crystal |
| 280PX57NC3 | crystal |
| 50M48NS1 | crown - crown |
| 0Z3004B02 | case back gasket |
| FH2980B0A | case back gasket - case back gasket |
| 86177922 | crystal gasket - plastic gasket for crystal |
| EC0060B01 | pusher - pusher gasket |
| 80625209 | pusher - button |
| 4730AZ | band - band |
| 4730JZ | band - band |
| 4730AZ-LK2 | band - link |
| 4730JZ-LK2 | band - link |
| 4730AZ-BKD | clasp - buckle |
| 4730AZ-PB2 | clasp - parts for buckle |
| 4730JZ-BKD | clasp - buckle |
| 4730JZ-PB2 | clasp - parts for buckle |
| 1AE085L0BTS | others - hour hand |
| 2AE125L0BTS | others - minute hand |
| 3AA125F0ANS | others - second hand |
| 3AA125F0ANB | others - second hand |
| 0351651 | others - winding stem |
| 83200273 | others - button spring clip |
| 81350540 | others - button spring |
| 0Z3114B02 | others - rotating bezel gasket |
| 5M420G9061 | others - case |
| 86322809 | others - rotating bezel |
| 5M420G90 | others - case back |
| 5M420G9061Z | others - case |
| 81332899 | others - bezel spring |
| 0866636 | others - holding ring for dial |
| 0878729 | others - date dial |
| 0878730 | others - date dial |
| 5M420K80XL13 | others - dial |
| 5M420K88XY13 | others - dial |
| 5M425 | others - machine code |
| A190BS | others - push pin |
| 0Z0060B01 | others - crown and stem gasket |
Caliber 5M42
