The Seiko 2C20-6550 is a watch model based on the 2C20 movement.
Parts List
| RE7N51HN00 | crystal - crystal (inorganic) |
| 32N07NA5 | crown - crown |
| 0H1650B01 | case back gasket - case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| DL69A | band - band |
| 06L17DBH | others - hour hand |
| 06V03DBM | others - minute hand |
| 2EH057A1BNB | others - minute hand |
| A130AS | others - push pin (for lb) |
| 2C200050XS19 | others - dial |
| 2C2010 | others - machine code |
| 2C20655025A | others - case |
| 83139390 | others - case ring |
| 1CH037A1BNB | others - hour hand |
Caliber 2C20
