The Seiko Y740-5040 is a watch model based on the Y740 movement.
Parts List
| SA2W78GN00 | crystal |
| FH2781B01 | case back gasket |
| 86560280 | crystal gasket |
| 80612462 | pusher |
| 80612502 | pusher - button (8h) |
| JL73A | band - leather band |
| EG0060B01 | others - button gasket |
| A180CS | others - push pin |
| 83200101 | others - button spring clip |
Other models with the same movement
| Y740-5000 |
| Y740-5020 |
| Y740-5030 |
| Y740-5070 |
| Y740-5100 |