The Seiko Y951-503A is a watch model based on the Y951 movement.
Parts List
| ES4W50GM02 | crystal |
| 35M68NS1 | crown - crown |
| 0J2820N01 | case back gasket - case back gasket |
| 80613929 | pusher |
| EG0060B01 | others - button gasket |
Other models with the same movement
| Y951-5009 |
| Y951-5020 |
| Y951-502A |
| Y951-5030 |
| Y951-5060 |