The Seiko Y740-5020 is a watch model based on the Y740 movement.
Parts List
| SA4N48AN00 | crystal |
| 0A2880N01 | case back gasket - case back gasket |
| EZ0152B01 | case back gasket |
| 86177370 | crystal gasket |
| 80612565 | pusher |
| 80612640 | pusher |
| JL71A | band - leather band |
| A190CS | others - push pin |
Other models with the same movement
| Y740-5000 |
| Y740-5030 |
| Y740-5040 |
| Y740-5070 |
| Y740-5100 |