The Seiko 9723-8040 is a watch model based on the 9723 movement.
Parts List
| 295W29HA00 | crystal |
| 40MB9NS1 | crown |
| 0Z2780BA | case back gasket |
| DB005B01 | case back gasket |
Caliber 9723
Other models with the same movement
| 9723-5000 |
| 9723-5009 |
| 9723-5010 |
| 9723-8000 |
| 9723-8009 |
| 9723-8010 |
| 9723-8030 |
| 9723-8050 |