The Seiko 2C20-5630 is a watch model based on the 2C20 movement.
Parts List
| REAN33JN00 | crystal |
| 32N09NA1 | crown |
| 0H1650B01 | case back gasket - case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| B5193C | band - metal band |
| B5193C-LKG | band - link |
| B5193G | band - metal band |
| B5193G-LKG | band - link |
| B5193G-PB1 | clasp - parts for buckle/clasp |
| B5193G-BK4G | clasp - clasp |
| B5193C-PB1 | clasp - parts for buckle/clasp |
| B5193C-BK4S | clasp - clasp |
| 06L15D1H | hand - hour hand |
| 06L15DGH | others - hour hand |
| 06V13DHM | others - minute hand |
| B5193C-EP2 | others - endpiece |
| B5193G-EP2 | others - endpiece |
| 2C2010 | others - machine code |
| 2C201320XG14 | others - dial |
| 2C201320XN14 | others - dial |
| 2C20563025 | others - case |
| 2C205630EA | others - case |
| 82713350 | others - case ring |
Caliber 2C20
