The Seiko 2Y01-5131 is a watch model based on the 2Y01 movement.
Parts List
| ET6N31JN01 | crystal |
| ET6N31JN | crystal |
| 32N23NN1 | crown |
| 32N23NS1 | crown |
| 32N23NA1 | crown |
| 0G1700B01 | case back gasket |
| 0G1700B0 | case back gasket |
| DA007BA1 | case back gasket |
| M5071K | band - metal band |
| 05T25NGM | hand - minute hand |
| 05T35DGH | hand - hour hand |
| 05T35DGM | hand - minute hand |
| 2BA052A1BNG | others - minute hand |
| 06SC15NG | others - second hand |
| 3BA075F1BNG | others - second hand |
| 1BA032A1BNG | others - hour hand |
| A100BS | others - push pin (for mb) |
| DA007BA11 | others - crown and stem gasket |
| 2Y010670XB14 | others - dial |
| 2Y010670XG24 | others - dial |
| 2Y010680XS19 | others - dial |
| 2Y015131 | others - case back |
| 2Y01513125 | others - case |
| 2Y0165 | others - machine code |
| 82830090 | others - case ring |
| 07SC04NG | others - second hand |
| 05T19DGH | others - hour hand |
| 05T19DGM | others - minute hand |
Caliber 2Y01
