The Seiko V401-1640 is a watch model based on the V401 movement.
Parts List
| 190A02JN02 | crystal - crystal (inorganic) |
| 6M30B5NNG0 | crown - crown |
| 6M30B5SNW0 | crown - crown |
| 6M30B5NN | crown |
| 6M30B5SN | crown |
| 0F160BA1 | case back gasket |
| 0F160BA1S | case back gasket - case back gasket |
| 4433BZ | band - band |
| 4404KZ | band - band |
| 4433AZ | band - band |
| 4404KZ-LKG | band - link |
| 4433BZ-LKG | band - link |
| 4433BZ-BK4G | clasp - buckle |
| 4404KZ-BK4G | clasp - buckle |
| 4404KZ-PB1 | clasp - parts for buckle |
| 3BA075F1BNG | others - second hand |
| 3BA090F1BNG | others - second hand |
| 3BA090F1BNS | others - second hand |
| 2AF075A1BNG | others - minute hand |
| 1AF050A1BNG | others - hour hand |
| 2AB075A1BNS | others - minute hand |
| 1AB055A1BNS | others - hour hand |
| 1AB055A1BNG | others - hour hand |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| V401164075C | others - case |
| V401164079A | others - case |
| V401164075B | others - case |
| 81604259 | others - bracelet fixing pin |
| 81190075 | others - bracelet fixing pipe |
| 81604219 | others - bracelet fixing pin |
| 82818070 | others - case ring |
| V401164075A | others - case |
| V4011640 | others - case back |
| V40110 | others - machine code |
| V4014710XG14 | others - dial |
| V4014710XS13 | others - dial |
| V4014710XS24 | others - dial |
| V4014720XG14 | others - dial |
| V4014921XG24 | others - dial |
| V4014921XS24 | others - dial |
| V4014931XS24 | others - dial |
| 2AD075AMBAA | others - minute hand |
| 2AB075A1BNG | others - minute hand |
| 1AD050AMBAA | others - hour hand |
| 2AB075A2BNG | others - minute hand |
| 1AB052A0BNG | others - hour hand |