The Seiko V041-521K is a watch model based on the V041 movement.
Parts List
| ES0P05LN03 | crystal |
| ES0P05LN | crystal |
| 40E11NS1 | crown - crown |
| 0F270BAA5 | case back gasket - case back gasket |
| 0F270BAA | case back gasket |
| 86589715 | crystal gasket |
| 80630659 | pusher |
| AD006BAA1 | pusher - button gasket |
| BPA83J | band |
| 82806030 | others - case ring |
| 84318537 | others - dial ring |
| A180CS | others - push pin |
| V04110 | others - machine code |
| V0415211 | others - case back |
| V041521K61 | others - case |
| V041531MXB13 | others - dial |
| 0354118 | others - winding stem |
| EC0060B0A | others - button gasket |
| 81350540 | others - button spring |
| 83200273 | others - button spring clip |
| 81402399 | others - button spring clip |
| 08SC51YS | others - second hand |
| 07PD5LSH | others - hour hand |
| 08P81LSM | others - minute hand |