The Seiko V821-0120 is a watch model based on the V821 movement.
Parts List
| 190A02LN03 | crystal - crystal |
| 35M37NS1 | crown |
| 35M37NN1 | crown - crown |
| 86563135 | case back gasket - plastic gasket for case back |
| DB0055B01 | case back gasket - crown and stem gasket |
| 520ZDJ | band |
| 8AD0JB | band |
| 533ZFJ | band |
| 3HA075F1BNS | others - second hand |
| 0354122 | others - winding stem |
| 07SH03XR | others - second hand |
| 08SH01XB | others - second hand |
| 3HA090F1BAR | others - second hand |
| 3HA075F1BAR | others - second hand |
| 3HA090F1BAB | others - second hand |
| 07SH03XB | others - second hand |
| 3HA075F1BNG | others - second hand |
| 3HA090F1BNG | others - second hand |
| 07H19NBM | others - minute hand |
| 08H05ACM | others - minute hand |
| 2HA075A1BAC | others - minute hand |
| 2HB070A1BNB | others - minute hand |
| 2HA075A3BAC | others - minute hand |
| 2HB080FABAC | others - minute hand |
| 2HA075A1BNG | others - minute hand |
| 2HX065AABAA | others - minute hand |
| 2HC080A1BNG | others - minute hand |
| 07H19NBH | others - hour hand |
| 08H05ACH | others - hour hand |
| 1HA050A1BAC | others - hour hand |
| 1HB047A1BNB | others - hour hand |
| 1HA055A3BAC | others - hour hand |
| 1HB055FABAC | others - hour hand |
| 1HA050A1BNG | others - hour hand |
| 1HX045AABAA | others - hour hand |
| 1HC050A1BNG | others - hour hand |