The Seiko 2C21-5600 is a watch model based on the 2C21 movement.
Parts List
| ET2N03HN01 | crystal - crystal |
| 32M25NA1 | crown - crown |
| 0G2600B01 | case back gasket - rotating bezel gasket |
| LL18A | band - band |
| 3AA125F1ANG | others - second hand |
| 12SC39T1 | others - second hand |
| 11SC43T1 | others - second hand |
| 11P11DGH | others - hour hand |
| 11P11DGM | others - minute hand |
| 11P77BCH | others - hour hand |
| 11P77BCM | others - minute hand |
| 1AC080A1BNG | others - hour hand |
| 2AC110A1BDG | others - minute hand |
| 2AC110A1BNG | others - minute hand |
| 0351226 | others - winding stem |
| 2C21560025 | others - case |
| 82803530 | others - case ring |
| 2C2110 | others - machine code |
| 2C211410XS19 | others - dial |
| 2C21142LXS19 | others - dial |
| EB0055B01 | others - crown and stem gasket |
Caliber 2C21
