The Seiko L423-5040 is a watch model based on the L423 movement.
Parts List
| SA2W65LN00 | crystal |
| 0A1650B0A | case back gasket |
| EG0070B01 | case back gasket |
Other models with the same movement
| L423-4010 |
| L423-4020 |
| L423-402A |
| L423-4030 |
| L423-403A |
| L423-4040 |
| L423-404A |
| L423-4050 |
| L423-4060 |
| L423-4070 |
| L423-4090 |
| L423-4100 |
| L423-4109 |
| L423-410A |
| L423-5000 |
| L423-5010 |
| L423-5019 |
| L423-5049 |