The Seiko 5Y39-6A90 is a watch model based on the 5Y39 movement.
Parts List
| 245W21HN01 | crystal |
| 245W21HN | crystal |
| 32M31NN1 | crown |
| 0F220BAA3 | case back gasket - case back gasket |
| 0F220BAA | case back gasket |
| 86592090 | crystal gasket |
| Z1558C-LKG | band - link |
| Z1558C | band |
| Z1558C-BK7G | clasp - clasp |
| 1BA070A1BNG | others - hour hand |
| A120BS | others - push pin (for lb) |
| 0801738 | others - date dial |
| 5Y396A90 | others - case back |
| 5Y396A907H | others - case |
| 5Y396A90XS14 | others - dial |
| 5Y396B | others - machine code |
| 82812450 | others - case ring |
| 0351670 | others - winding stem |
| EB0055B01 | others - crown and stem gasket |
| 10T07DGM | others - minute hand |
| 10T07DGH | others - hour hand |
| 2BA105A1BDG | others - minute hand |