The Seiko 5M23-6B40 is a watch model based on the 5M23 movement.
Parts List
| 280WA8HN01 | crystal |
| 1E55A2SNB1 | crown - crown |
| 1E55A2SNW1 | crown |
| 0C3060B0A | case back gasket - case back gasket |
| 86177921 | crystal gasket - plastic gasket for crystal |
| 80604129 | pusher - button |
| 80604124 | pusher - button |
| D065AB | band - metal band |
| D0B1AG | band - band |
| DAY6AB | band - band |
| DAR7AB | band - other band |
| 1AX075F0BSB | others - hour hand |
| 1AX075F0BSS | others - hour hand |
| 1AX075F0BSW | others - hour hand |
| 2AX105F0BSB | others - minute hand |
| 2AX105F0BSS | others - minute hand |
| 2AX105F0BSW | others - minute hand |
| 3AX125F2ASB | others - second hand |
| 3AX125F2ASF | others - second hand |
| 0351651 | others - winding stem |
| 81400709 | others - button spring clip |
| 81350460 | others - button spring |
| EB0100B01 | others - button gasket |
| 81332899 | others - bezel spring |
| 81400969 | others - button spring clip |
| 0866626 | others - holding ring for dial |
| 0878675 | others - date dial |
| 5M232 | others - machine code |
| 5M236B4061 | others - case |
| 5M236B4061A | others - case |
| 5M236B4061B | others - case |
| 5M236B4061C | others - case |
| 5M236B50X919 | others - dial |
| 5M236B50XZ19 | others - dial |
| 5M236B60XL19 | others - dial |
| 5M236B60XY19 | others - dial |
| 5M236C60X919 | others - dial |
| 5M236C70XL19 | others - dial |
| 5M236C70XY19 | others - dial |
| 84323488 | others - dial ring |
| 8432348A | others - dial ring |
| 8432348B | others - dial ring |
| 8432348C | others - dial ring |
| 86311609 | others - rotating bezel |
| C180FS | others - push pin |
| 0Z3114B02 | others - rotating bezel gasket |
| 5M236B40WF | others - case |
| 86311604 | others - rotating bezel |
| 5M236B40 | others - case back |
| 5M236B40WFA | others - case |
| 5M236B40WFB | others - case |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |