The Seiko V851-6420 is a watch model based on the V851 movement.
Parts List
| 270P02LN03 | crystal - crystal |
| 8M45A1SNG0 | crown - crown |
| 0F260BAA1 | case back gasket - case back gasket |
| 86592530 | crystal gasket |
| 86591910 | bezel gasket |
| 8C89JZ | band |
| 3HX115F5BNB | others - second hand |
| DE010BAA1 | others - crown and stem gasket |
| 0354133 | others - winding stem |
| 2HH100FABFB | others - minute hand |
| 1HH070FABFB | others - hour hand |