The Seiko 5H23-5A40 is a watch model based on the 5H23 movement.
Parts List
| ES9W14HN01 | crystal |
| 40M78NA1 | crown - crown |
| 0A2800N0A | case back gasket |
| 86574660 | crystal gasket - plastic gasket for crystal |
| Z1322C | band - metal band |
| Z1322C-LKG | band - link |
| Z1322G | band - metal band |
| Z1322G-LKG | band - link |
| Z1322G-PB1 | clasp - parts for buckle/clasp |
| Z1322G-BK2G | clasp - clasp |
| Z1322C-PB1 | clasp - parts for buckle/clasp |
| Z1322C-BK2S | clasp - clasp |
| 10C18DGM | hand - minute hand |
| 10CP4DGH | hand - hour hand |
| 5H235A4075 | others - case |
| 5H235A40SF | others - case |
| 5H235A40XG14 | others - dial |
| 5H235A50XS14 | others - dial |
| 5H239 | others - machine code |
| 82801580 | others - case ring |
| 0351670 | others - winding stem |
| A180CS | others - push pin |
| 0801719 | others - date dial |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 2AA100AMBNG | others - minute hand |
| 10C26NGM | others - minute hand |
| 1AA070AMBNG | others - hour hand |
| 11C16NGH | others - hour hand |
Caliber 5H23
