The Seiko 5P39-7A20 is a watch model based on the 5P39 movement.
Parts List
| 275W20HM01 | crystal |
| 34M04EH1 | crown |
| 0A2600N01 | case back gasket - case back gasket |
| 86574201 | crystal gasket |
| B1511H | band - metal band |
| B1511H-LKS | band - link |
| B1511H-BK4S | clasp - clasp |
| 10T72NBH | hand - hour hand |
| 10T72XSH | hand - hour hand |
| 10T80NBM | hand - minute hand |
| 10T80XSM | hand - minute hand |
| 5P397A10X983 | others - dial |
| 5P397A10X993 | others - dial |
| 5P397A20 | others - case back |
| 5P397A20WZ | others - case |
| 5P399 | others - machine code |
| A140BS | others - push pin |
| 0351670 | others - winding stem |
| 82802780 | others - case ring |
| 0801738 | others - date dial |
| 0801739 | others - date dial |