The Seiko 2Y01-5100 is a watch model based on the 2Y01 movement.
Parts List
| ESEW13LN | crystal |
| ESEW13LN01 | crystal |
| 32M65NN1 | crown |
| 0F150BA1 | case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| 0F150BA17 | case back gasket |
| 86590750 | crystal gasket - plastic gasket for crystal |
| ZGA10G | band - leather band |
| ZGJ15G | band - leather band |
| 2BA055A1BNG | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 2BA050A1BNG | others - minute hand |
| A110BS | others - push pin (for mb) |
| 2Y010050XB14 | others - dial |
| 2Y010050XG14 | others - dial |
| 2Y015100 | others - case back |
| 2Y01510075 | others - case |
| 2Y0165 | others - machine code |
| 82823430 | others - case ring |
| 07SC04NG | others - second hand |
| 05T11NGM | others - minute hand |
| 1BA032A3BNG | others - hour hand |
Caliber 2Y01
