The Seiko 2F70-5921 is a watch model based on the 2F70 movement.
Parts List
| SAHN31SN01 | crystal |
| 22N13DZ5C | crown |
| 22N13DZ5 | crown |
| 0D190NAA1 | case back gasket - case back gasket |
| MK07P | band - leather band |
| A120AS | others - push pin |
| 07M01CHH | others - hour hand |
| DZ0040B01 | others - crown and stem gasket |
| 07M01CHM | others - minute hand |