The Seiko 2C21-5560 is a watch model based on the 2C21 movement.
Parts List
| REEN17JM01 | crystal - crystal |
| REEN17JV01 | crystal - crystal |
| 40MR7NQ1 | crown - crown |
| 40MT1NA1 | crown - crown |
| 0D260BA11 | case back gasket |
| AL51A | band - band |
| AL52A | band - band |
| 3BA125F1BNG | others - second hand |
| 08PE5NGH | others - hour hand |
| 08PE5NGM | others - minute hand |
| 08PE5AAH | others - hour hand |
| 08PE5AGM | others - minute hand |
| 0351225 | others - winding stem |
| EB0055B01 | others - crown and stem gasket |
| 2C21556011 | others - case |
| 82732790 | others - case ring |
| 2C2155601B | others - case |
| 2C2110 | others - machine code |
| 2C211340XB19 | others - dial |
| 2C211340XN19 | others - dial |
| 2C211470XN19 | others - dial |
| A150BS | others - push pin |
| 08SC29NG | others - second hand |
Caliber 2C21
