The Seiko 5P39-5020 is a watch model based on the 5P39 movement.
Parts List
| ET2N17JN01 | crystal |
| ET2N17JN | crystal |
| 30N83NA1 | crown - crown |
| 30N91NA1 | crown |
| 0H2500B01 | case back gasket - case back gasket |
| DZ0065B0 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| 0H2500B0 | case back gasket |
| B1507C | band - metal band |
| B1507C-LKG | band - link |
| B1507D | band - metal band |
| B1507D-LKG | band - link |
| B1507D-BK4G | clasp - clasp |
| B1507C-BK4G | clasp - clasp |
| 1BG060LABDG | others - hour hand |
| 2BG090LABDG | others - minute hand |
| 5P395020 | others - case back |
| 5P3950202G | others - case |
| 5P395020JF | others - case |
| 5P395040XB14 | others - dial |
| 5P395040XS14 | others - dial |
| 5P395110XS14 | others - dial |
| 82810010 | others - case ring |
| 81180249 | others - bracelet fixing pipe |
| 81604939 | others - bracelet fixing pin |
| 09T05DGM | others - minute hand |
| 09T05DGH | others - hour hand |
| 08T17DGM | others - minute hand |
| 08T17DGH | others - hour hand |