The Seiko 2621-0040 is a watch model based on the 2621 movement.
Parts List
| 210N39SN00 | crystal |
| 35R21DE1 | crown |
| 0G1940B01 | case back gasket |
| 0G2130B09 | bezel gasket |
| PK216 | band - leather band |
| A130BS | others - push pin |
| 09P21NGH | others - hour hand |
| 09P21NGM | others - minute hand |
| 09SC31NG | others - second hand |
| 1AA060A3BNG | others - hour hand |
| 2AA085A3BNG | others - minute hand |
Caliber 2621
Other models with the same movement
| 2621-0100 |
| 2621-0110 |
| 2621-0140 |
| 2621-5000 |
| 2621-5170 |