The Seiko 5M42-0H20 is a watch model based on the 5M42 movement.
Parts List
| 290P01HN03 | crystal - mineral crystal |
| 40MD4NA1 | crown - crown |
| 40MD4NS1 | crown - crown |
| FH2981B01 | case back gasket - case back gasket |
| 86574980 | crystal gasket - crystal gasket |
| 80600549 | pusher - button (2h) |
| 80600541 | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| 4733CB | band - band |
| 4733LB | band - band |
| 4732AB | band - band |
| 4733JB | band - band |
| 4733KB | band - band |
| 4732JB | band - band |
| 4733AB | band - band |
| 4733CB-LK4 | band - link |
| 4733JB-LK2 | band - link |
| 4733KB-LK4 | band - link |
| 4733LB-LK4 | band - link |
| 4733BB | band - band |
| 4732AB-LK2 | band - link |
| 4732JB-LK2 | band - link |
| 4733AB-LK2 | band - link |
| 4733BB-LK4 | band - link |
| 4733LB-PB2 | clasp - parts for buckle |
| 4733BB-BKN | clasp - buckle |
| 4733BB-PB2 | clasp - parts for buckle |
| 4733KB-PB2 | clasp - parts for buckle |
| 4733CB-BKN | clasp - buckle |
| 4733CB-PB2 | clasp - parts for buckle |
| 4732JB-BKD | clasp - buckle |
| 4732JB-PB2 | clasp - parts for buckle |
| 4733KB-BKF | clasp - buckle |
| 4733LB-BKD | clasp - buckle |
| 4732AB-BKD | clasp - buckle |
| 4732AB-PB2 | clasp - parts for buckle |
| 1AE075LBBSS | others - hour hand |
| 2AE115LABSS | others - minute hand |
| 3AA125F2ANS | others - second hand |
| 1AB080AEBSS | others - hour hand |
| 2AB115AFBSS | others - minute hand |
| 3AA125F2ANG | others - second hand |
| 3AX130F0ASS | others - second hand |
| 81350540 | others - button spring |
| 83200273 | others - button spring clip |
| 0351651 | others - winding stem |
| 5M420H2061 | others - case |
| 5M420H20 | others - case back |
| 5M420H206Y | others - case |
| 5M420H206YZ | others - case |
| 5M420H2061Z | others - case |
| 0866640 | others - holding ring for dial |
| 0878729 | others - date dial |
| 0878730 | others - date dial |
| 0878731 | others - date dial |
| 0878732 | others - date dial |
| 5M420H2075Z | others - case |
| 5M420H2075 | others - case |
| 4733CB-EP2 | others - endpiece |
| 4733BB-EP2 | others - endpiece |
| 5M420L60XB13 | others - dial |
| 5M420L60XG14 | others - dial |
| 5M420L60XL14 | others - dial |
| 5M420L60XS13 | others - dial |
| 5M420L60XS24 | others - dial |
| 5M420L68XB13 | others - dial |
| 5M420L68XG14 | others - dial |
| 5M420L68XL14 | others - dial |
| 5M420L68XS13 | others - dial |
| 5M420L68XS24 | others - dial |
| 5M420L70XS13 | others - dial |
| 5M420L78XL13 | others - dial |
| 5M420L78XR13 | others - dial |
| 5M420L78XS13 | others - dial |
| 5M420L78XY13 | others - dial |
| 5M425 | others - machine code |
| A200BS | others - push pin |
| 81400829 | others - button spring clip |
| 0Z0060B01 | others - crown and stem gasket |
| 2AE115LABSG | others - minute hand |
| 1AE075LBBSG | others - hour hand |
| 290P01HN03 | crystal - mineral crystal |
| 40MD4NA1 | crown - crown |
| 40MD4NS1 | crown - crown |
| FH2981B01 | case back gasket - case back gasket |
| 86574980 | crystal gasket - crystal gasket |
| 80600549 | pusher - button (2h) |
| 80600541 | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| 4733CB | band - band |
| 4733LB | band - band |
| 4732AB | band - band |
| 4733JB | band - band |
| 4733KB | band - band |
| 4732JB | band - band |
| 4733AB | band - band |
| 4733CB-LK4 | band - link |
| 4733JB-LK2 | band - link |
| 4733KB-LK4 | band - link |
| 4733LB-LK4 | band - link |
| 4733BB | band - band |
| 4732AB-LK2 | band - link |
| 4732JB-LK2 | band - link |
| 4733AB-LK2 | band - link |
| 4733BB-LK4 | band - link |
| 4733LB-PB2 | clasp - parts for buckle |
| 4733BB-BKN | clasp - buckle |
| 4733BB-PB2 | clasp - parts for buckle |
| 4733KB-PB2 | clasp - parts for buckle |
| 4733CB-BKN | clasp - buckle |
| 4733CB-PB2 | clasp - parts for buckle |
| 4732JB-BKD | clasp - buckle |
| 4732JB-PB2 | clasp - parts for buckle |
| 4733KB-BKF | clasp - buckle |
| 4733LB-BKD | clasp - buckle |
| 4732AB-BKD | clasp - buckle |
| 4732AB-PB2 | clasp - parts for buckle |
| 1AE075LBBSS | others - hour hand |
| 2AE115LABSS | others - minute hand |
| 3AA125F2ANS | others - second hand |
| 1AB080AEBSS | others - hour hand |
| 2AB115AFBSS | others - minute hand |
| 3AA125F2ANG | others - second hand |
| 3AX130F0ASS | others - second hand |
| 81350540 | others - button spring |
| 83200273 | others - button spring clip |
| 0351651 | others - winding stem |
| 5M420H2061 | others - case |
| 5M420H20 | others - case back |
| 5M420H206Y | others - case |
| 5M420H206YZ | others - case |
| 5M420H2061Z | others - case |
| 0866640 | others - holding ring for dial |
| 0878729 | others - date dial |
| 0878730 | others - date dial |
| 0878731 | others - date dial |
| 0878732 | others - date dial |
| 5M420H2075Z | others - case |
| 5M420H2075 | others - case |
| 4733CB-EP2 | others - endpiece |
| 4733BB-EP2 | others - endpiece |
| 5M420L60XB13 | others - dial |
| 5M420L60XG14 | others - dial |
| 5M420L60XL14 | others - dial |
| 5M420L60XS13 | others - dial |
| 5M420L60XS24 | others - dial |
| 5M420L68XB13 | others - dial |
| 5M420L68XG14 | others - dial |
| 5M420L68XL14 | others - dial |
| 5M420L68XS13 | others - dial |
| 5M420L68XS24 | others - dial |
| 5M420L70XS13 | others - dial |
| 5M420L78XL13 | others - dial |
| 5M420L78XR13 | others - dial |
| 5M420L78XS13 | others - dial |
| 5M420L78XY13 | others - dial |
| 5M425 | others - machine code |
| A200BS | others - push pin |
| 81400829 | others - button spring clip |
| 0Z0060B01 | others - crown and stem gasket |
| 2AE115LABSG | others - minute hand |
| 1AE075LBBSG | others - hour hand |
Caliber 5M42
