The Seiko 2P20-5A40 is a watch model based on the 2P20 movement.
Parts List
| RE3N98GN00 | crystal - crystal |
| 30M98NA1 | crown |
| 0H1720N01 | case back gasket - case back gasket |
| BJA10G | band - leather band |
| BJJ09G | band - leather band |
| WJA15G | band - leather band |
| WJA20G | band - leather band |
| WJJ11G | band - leather band |
| WJJ13G | band - leather band |
| 05Y16FGH | hand - hour hand |
| 05Y16GGM | hand - minute hand |
| 06Y06NGH | hand - hour hand |
| A130AS | others - push pin (for lb) |
| 0351236 | others - winding stem |
| 2P200A90XG14 | others - dial |
| 2P200B00XS19 | others - dial |
| 2P205A4025 | others - case |
| 2P209 | others - machine code |
| 82801020 | others - case ring |
| DZ0041B01 | others - crown and stem gasket |
| 2CA052A0BNG | others - minute hand |
| 05Y02NGM | others - minute hand |
Caliber 2P20
