The Seiko 5P31-5030 is a watch model based on the 5P31 movement.
Parts List
| REEN37JN01 | crystal |
| REEN37JN | crystal |
| 35NR5NA1 | crown |
| 0H2650B01 | case back gasket |
| 0H2650B0 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| DZ0065B0 | case back gasket |
| GPA03G | band - leather band |
| G1236G | band - metal band |
| G1236G-BK5G | clasp - clasp |
| 1BA060A1BNG | others - hour hand |
| 3BA125F1BNG | others - second hand |
| 09SC27NG | others - second hand |
| 5P315030 | others - case back |
| 5P31503025 | others - case |
| 5P315030XB14 | others - dial |
| 5P315040XB14 | others - dial |
| 82800490 | others - case ring |
| A180BS | others - push pin |
| 09T13DGM | others - minute hand |
| 2BA090A1BDG | others - minute hand |