The Seiko L823-4000 is a watch model based on the L823 movement.
Parts List
| ES2W63LZ10 | crystal |
| ES2W63LZ50 | crystal |
| 35M49NS1 | crown |
| 35M49NA1 | crown |
| 0F130BAA1 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
Other models with the same movement
| L823-4010 |
| L823-4019 |
| L823-4020 |
| L823-4030 |
| L823-4040 |
| L823-4050 |
| L823-4060 |
| L823-4069 |
| L823-4070 |
| L823-407A |
| L823-5000 |
| L823-5010 |
| L823-5020 |