The Seiko 5420-5039 is a watch model based on the 5420 movement.
Parts List
| SA5N88AN00 | crystal - crystal (organic) |
| 35N18NA1 | crown |
| 0A1400N01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| Q546G | band - metal band |
| Q546Y | band - metal band |
| Q546G-BK3G | clasp - buckle |
| Q546Y-BK3G | clasp - buckle |
| 0354706 | others - winding stem |
| 54200120XG24 | others - dial |
| 5420503925 | others - case |
| 54209 | others - machine code |
| 82702120 | others - case ring |
| B080BS | others - push pin |
| 05R01DGM | others - minute hand |
| 05R17DGH | others - hour hand |
Caliber 5420
