The Seiko 2B31-0010 is a watch model based on the 2B31 movement.
Parts List
| 180A02LN03 | crystal |
| ES5W36GN00 | crystal |
| 35NM1NN1 | crown |
| 0G1700B0 | case back gasket |
| 0G1750B0 | case back gasket |
| 0G1750B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| BGA19G | band - leather band |
| BGA27G | band - leather band |
| BGJ07G | band - leather band |
| BGJ42G | band - leather band |
| BGJ43G | band - leather band |
| BGJ44G | band - leather band |
| BGS06G | band - leather band |
| BGZ29G | band - leather band |
| 08P95NGH | hand - hour hand |
| 1AE052L0BN2 | hand - hour hand |
| 3BA075F1BNG | others - second hand |
| 07SC17NG | others - second hand |
| 1AC047A1BAA | others - hour hand |
| 2AC070A1BAA | others - minute hand |
| 1AA050A1BAA | others - hour hand |
| 2AA070A1BAA | others - minute hand |
| 07P41AGM | others - minute hand |
| 07SC43NG | others - second hand |
| 2AE075L0BNG | others - minute hand |
| 2B310010 | others - case back |
| 2B31001025 | others - case |
| 2B310010XG14 | others - dial |
| 2B310010XN14 | others - dial |
| 2B310020XG14 | others - dial |
| 2B310020XN14 | others - dial |
| 2B310030XG19 | others - dial |
| 2B310040XG19 | others - dial |
| 2B310050XS19 | others - dial |
| 2B310060XS19 | others - dial |
| 2B310070XB14 | others - dial |
| 2B310070XG14 | others - dial |
| 2B310070XR14 | others - dial |
| 2B310070XS14 | others - dial |
| 2B310080XB14 | others - dial |
| 2B310080XG14 | others - dial |
| 2B310080XR14 | others - dial |
| 2B310080XS14 | others - dial |
| 2B310230XG14 | others - dial |
| 2B310240XB14 | others - dial |
| 2B310400XB14 | others - dial |
| 2B310400XG14 | others - dial |
| 2B310410XS19 | others - dial |
| 2B3126 | others - machine code |
| 82812650 | others - case ring |
| A110AS | others - push pin |
| 08P07NGM | others - minute hand |
| 1AA050A1BNG | others - hour hand |
| 2AA075A1BNG | others - minute hand |
| 07P37DGM | others - minute hand |
| 07P37DGH | others - hour hand |
| 2AA075A1BAA | others - minute hand |
| 07P29AGM | others - minute hand |
| 08P95NGM | others - minute hand |
| 1AA047A1BAA | others - hour hand |
| 08P61AHM | others - minute hand |
Caliber 2B31





Other models with the same movement
| 2B31-0020 |
| 2B31-5000 |
| 2B31-5010 |
| 2B31-5039 |