The Seiko 5H23-7D20 is a watch model based on the 5H23 movement.
Parts List
| 285W16SN01 | crystal - crystal |
| 45EA6NS1 | crown |
| 0A2500N0A | case back gasket - case back gasket |
| 86581140 | crystal gasket - plastic gasket for crystal |
| 86178600 | bezel gasket - plastic gasket for bezel |
| AA05C | band - band |
| 12C58KSH | others - hour hand |
| 12C58KSM | others - minute hand |
| 0351672 | others - winding stem |
| 82800261 | others - case ring |
| 5H237D2099 | others - case |
| 82344389 | others - bezel |
| 5H237D20 | others - case back |
| 0801722 | others - date dial |
| 0866558 | others - holding ring for dial |
| 5H237D7LXS19 | others - dial |
| 5H237D8LXB13 | others - dial |
| 5H237D8LXS13 | others - dial |
| 5H239 | others - machine code |
| A180BS | others - push pin |
| 12C58KKH | others - hour hand |
| 0A0150B0A | others - crown and stem gasket |
| 13SC04ES | others - second hand |
| 89995390 | others - pusher spacer |
Caliber 5H23
