The Seiko 2P20-5K80 is a watch model based on the 2P20 movement.
Parts List
| BA3N02JN01 | crystal |
| 30M98NA1 | crown |
| 30M98NS1 | crown - crown |
| 0H2800N01 | case back gasket - rotating bezel gasket |
| MK42C | band - leather band |
| MK43C | band - leather band |
| MK44C | band - leather band |
| MK45C | band - leather band |
| 0351236 | others - winding stem |
| 81181859 | others - bracelet fixing pipe |
| 81606479 | others - bracelet fixing pin |
| 2P029 | others - machine code |
| 2P201G20X994 | others - dial |
| 2P201G20XG14 | others - dial |
| 2P205K8025 | others - case |
| 2P205K802E | others - case |
| 82804780 | others - case ring |
| 89904361 | others - case back |
| 89904362 | others - case back |
| A150AS | others - push pin |
| 07Y28DGH | others - hour hand |
| 07Y28DGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 2P20
