The Seiko 2C20-5770 is a watch model based on the 2C20 movement.
Parts List
| ESTN39AN00 | crystal |
| 32N09NA1 | crown |
| 0H1400B01 | case back gasket - case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| Z5111G | band - metal band |
| Z5111G-BK3G | clasp - clasp |
| 05R05DGM | hand - minute hand |
| 06R05DGH | hand - hour hand |
| 06R27DGH | hand - hour hand |
| 06R33DGM | hand - minute hand |
| 06R41DGH | hand - hour hand |
| 06R41DGM | hand - minute hand |
| 2C2010 | others - machine code |
| 2C201560XB14 | others - dial |
| 2C201560XN14 | others - dial |
| 2C201570XG14 | others - dial |
| 2C201570XR14 | others - dial |
| 2C20577025 | others - case |
| 82714810 | others - case ring |
| B080AS | others - push pin |
| 05R07DGH | others - hour hand |
| 05R07DGM | others - minute hand |
Caliber 2C20
