The Seiko 5M42-0F20 is a watch model based on the 5M42 movement.
Parts List
| 300P22JR02 | crystal - crystal |
| 1E55B8SNN1 | crown - crown |
| 1E55B8SNW1 | crown - crown |
| 0C3060B0A | case back gasket - case back gasket |
| 0Z3314B02 | case back gasket - rotating bezel gasket |
| 86178610 | crystal gasket - plastic gasket for crystal |
| 80608644 | pusher - button |
| 80608649 | pusher - button |
| 4681AB | band - band |
| 4681MB | band - band |
| 4681JB | band - band |
| 4681AB-LK3 | band - link |
| 4681JB-LK3 | band - link |
| 4681MB-LK5 | band - link |
| 4681JB-BKD | clasp - buckle |
| 4681JB-PB2 | clasp - parts for buckle |
| 4681AB-BKD | clasp - buckle |
| 4681AB-PB2 | clasp - parts for buckle |
| 4681MB-BKD | clasp - buckle |
| 4681MB-PB2 | clasp - parts for buckle |
| 1AX080FSBSB | others - hour hand |
| 1AX080FSBSS | others - hour hand |
| 2AH120F0BSB | others - minute hand |
| 2AH120F0BSS | others - minute hand |
| 3AX125FMASB | others - second hand |
| 3AX125FMASS | others - second hand |
| 81400709 | others - button spring clip |
| 81350460 | others - button spring |
| EB0100B01 | others - button gasket |
| 5M420F2061 | others - case |
| 86312489 | others - rotating bezel |
| 5M420F20 | others - case back |
| 81400969 | others - button spring clip |
| 0866639 | others - holding ring for dial |
| 0878729 | others - date dial |
| 4681AB-EP1 | others - endpiece |
| 5M420F20WKZ | others - case |
| 86312484 | others - rotating bezel |
| 5M420F2061A | others - case |
| 5M420F2061Y | others - case |
| 5M420F2061Z | others - case |
| 5M420J40XB13 | others - dial |
| 5M420J40XY13 | others - dial |
| 5M420J48XB13 | others - dial |
| 5M420J48XE13 | others - dial |
| 5M420J48XY13 | others - dial |
| 5M425 | others - machine code |
| 81332049 | others - click spring |
| 84328004 | others - dial ring |
| 84328005 | others - dial ring |
| C180FS | others - push pin |
| 4681MB-EP2 | others - endpiece |
| 4681JB-EP2 | others - endpiece |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |
Caliber 5M42
