The Seiko 5H23-8A40 is a watch model based on the 5H23 movement.
Parts List
| 290W38ZN01 | crystal - crystal |
| 45EA6NA1 | crown |
| 45EA6NS1 | crown |
| FH2980B0A | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 86179411 | bezel gasket - plastic gasket for bezel |
| Z1323C | band - metal band |
| Z1323C-LKG | band - link |
| Z1323S | band - metal band |
| Z1323S-LKS | band - link |
| Z1323S-PB1 | clasp - parts for buckle/clasp |
| Z1323S-BK1S | clasp - clasp |
| Z1323C-PB1 | clasp - parts for buckle/clasp |
| Z1323C-BK1S | clasp - clasp |
| 12C54BGH | hand - hour hand |
| 12C54BGM | hand - minute hand |
| 12C54BSH | others - hour hand |
| 12C54BSM | others - minute hand |
| 12C52MSH | others - hour hand |
| 12C52MSM | others - minute hand |
| 0801729 | others - date dial |
| 0801735 | others - date dial |
| 0866561 | others - holding ring for dial |
| 0351672 | others - winding stem |
| 82800261 | others - case ring |
| 5H238A4061 | others - case |
| 5H238A4098 | others - case |
| 5H238A4LXS17 | others - dial |
| 5H238A5LXB13 | others - dial |
| 5H238A5LXG14 | others - dial |
| 5H239 | others - machine code |
| 82342301 | others - bezel |
| 82342309 | others - bezel |
| A200CS | others - push pin |
| 0A0150B0A | others - crown and stem gasket |
| 13SC06LS | others - second hand |
| 13SC06LA | others - second hand |
| 89995390 | others - pusher spacer |
Caliber 5H23
