The Seiko 2P20-5B80 is a watch model based on the 2P20 movement.
Parts List
| RE9N06JN01 | crystal |
| 30M98NA1 | crown |
| 0H1720N01 | case back gasket - case back gasket |
| Z5168C | band - metal band |
| Z5168C-BK3G | clasp - clasp |
| Z5168C-EP2 | others - endpiece |
| 0351236 | others - winding stem |
| 2P200C20X994 | others - dial |
| 2P205B8011 | others - case |
| 2P209 | others - machine code |
| 82801020 | others - case ring |
| 2CE055L0BDG | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 05Y10DGM | others - minute hand |
| 05Y10DGH | others - hour hand |
Caliber 2P20
