The Seiko 5H23-8A8A is a watch model based on the 5H23 movement.
Parts List
| 290W38HV01 | crystal |
| 40M78NA1 | crown - crown |
| FH2980B0A | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| BPA53G | band - leather band |
| BPA53G-LB | band - leather without buckle |
| BPA53G-BK7G | clasp - clasp |
| 12C38C1H | hand - hour hand |
| 12C38C1M | hand - minute hand |
| 5H238A70X984 | others - dial |
| 5H238A80 | others - case back |
| 5H238A8A61 | others - case |
| 5H239 | others - machine code |
| 84314884 | others - dial ring |
| 0351672 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82800261 | others - case ring |
| 0801722 | others - date dial |
| 0866567 | others - holding ring for dial |
| BPA53G-EP2 | others - endpiece |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
Caliber 5H23
