The Seiko 5M23-6A40 is a watch model based on the 5M23 movement.
Parts List
| 290W38SN01 | crystal - crystal |
| 40MF4NS1 | crown - crown |
| FH2980B0A | case back gasket - case back gasket |
| 86565320 | crystal gasket - plastic gasket for crystal |
| 86564640 | bezel gasket - plastic gasket for bezel |
| 80601369 | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| D010AG | band - metal band |
| 3AA125F0ANS | others - second hand |
| 81400709 | others - button spring clip |
| 81350540 | others - button spring |
| 0351651 | others - winding stem |
| 0866631 | others - holding ring for dial |
| 0878675 | others - date dial |
| 5M232 | others - machine code |
| 5M236A40 | others - case back |
| 5M236A406T | others - case |
| 5M236A406TA | others - case |
| 5M236A60XL13 | others - dial |
| 5M236A60XS13 | others - dial |
| 82286189 | others - bezel |
| 84322966 | others - dial ring |
| 84322967 | others - dial ring |
| A180BS | others - push pin |
| 1AA085LMBCC | others - hour hand |
| 1AA085LMBCE | others - hour hand |
| 2AA120LNBCC | others - minute hand |
| 3AA125F0ANA | others - second hand |
| 81400829 | others - button spring clip |
| 0Z0060B01 | others - crown and stem gasket |
| 2AA120LNBCE | others - minute hand |