The Seiko Y757-4000 is a watch model based on the Y757 movement.
Parts List
| SA7N66GM01 | crystal |
| SA7N70GM01 | crystal |
| SA7N72GM01 | crystal |
| FH2781B01 | case back gasket |
| 86564260 | crystal gasket |
| 80612462 | pusher |
| KK72A | band - leather band |
| KK73A | band - leather band |
| KK75A | band - leather band |
| EG0060B01 | others - button gasket |
| A170BS | others - push pin |
| 83200101 | others - button spring clip |
Other models with the same movement
| Y757-5000 |
| Y757-5010 |
| Y757-5020 |