The Seiko 2P20-5C80 is a watch model based on the 2P20 movement.
Parts List
| SA8W48JM01 | crystal |
| 30MA2NA1 | crown - crown |
| 0A1700N01 | case back gasket - case back gasket |
| 0A1700N0 | case back gasket |
| 86574360 | crystal gasket - plastic gasket for crystal |
| B5335G | band - metal band |
| B5335G-BK3G | clasp - clasp |
| 06Y10DGH | hand - hour hand |
| 06Y10DGM | hand - minute hand |
| 2P200E20X994 | others - dial |
| 2P205C8075 | others - case |
| 2P209 | others - machine code |
| 82800820 | others - case ring |
| 0351236 | others - winding stem |
| EZ0035B0A | others - crown and stem gasket |
| T060BS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
Caliber 2P20
