The Seiko 2Y01-5120 is a watch model based on the 2Y01 movement.
Parts List
| BA5N31JN01 | crystal |
| BA5N31JN | crystal |
| 32N23NN1 | crown |
| 32N23NA1 | crown |
| 0H1900B01 | case back gasket - case back gasket |
| 0H1900B0 | case back gasket |
| ZHA14G | band |
| ZHA13G | band - leather band |
| ZHJ25G | band - leather band |
| ZHJ30G | band - leather band |
| ZHZ20G | band - leather band |
| 2BA055A1BNG | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 1BC040A1BNG | others - hour hand |
| 2BC060A1BNG | others - minute hand |
| 2BA050A1BNG | others - minute hand |
| 06SC15NG | others - second hand |
| A120BS | others - push pin (for lb) |
| 2Y010580XB14 | others - dial |
| 2Y010580XS14 | others - dial |
| 2Y010580XY14 | others - dial |
| 2Y010590XG14 | others - dial |
| 2Y010610XB14 | others - dial |
| 2Y015120 | others - case back |
| 2Y01512025 | others - case |
| 2Y0165 | others - machine code |
| 82830050 | others - case ring |
| DA007BA11 | others - crown and stem gasket |
| 1BA037A1BNG | others - hour hand |
| 06SC11NG | others - second hand |
| 0351236 | others - winding stem |
| 06T19NGM | others - minute hand |
| 05T11NGM | others - minute hand |
| 05T05DGH | others - hour hand |
Caliber 2Y01
