The Seiko 4006-6021 is a watch model based on the 4006 movement.
Caliber 4006
Other models with the same movement
| 4006-6000 |
| 4006-6010 |
| 4006-6011 |
| 4006-6020 |
| 4006-6029 |
| 4006-6030 |
| 4006-6031 |
| 4006-6040 |
| 4006-6050 |
| 4006-6060 |
| 4006-6070 |
| 4006-6080 |
| 4006-6089 |
| 4006-7002 |
| 4006-7010 |
| 4006-7011 |
| 4006-7012 |
| 4006-7020 |
| 4006-7021 |