The Seiko 2P20-5440 is a watch model based on the 2P20 movement.
Parts List
| ET1N25JV01 | crystal |
| ET1N25JV02 | crystal |
| 30N63NA1 | crown - crown |
| 30ND3NA1 | crown - crown |
| 0G1890B02 | case back gasket - case back gasket |
| WKZ04C | band - leather band |
| WKZ12G | band - leather band |
| 06Y23DGH | hand - hour hand |
| 06Y23DGM | hand - minute hand |
| 2P200520XY14 | others - dial |
| 2P205440 | others - case back |
| 2P2054402H | others - case |
| DZ0040B01 | others - crown and stem gasket |
| 06Y01DGH | others - hour hand |
| 82802110 | others - case ring |
| A140AS | others - push pin |
| 06Y01DGM | others - minute hand |
Caliber 2P20
