The Seiko 3Y02-0020 is a watch model based on the 3Y02 movement.
Parts List
| 200A02JN02 | crystal - crystal |
| 200N08GN00 | crystal |
| 200N75JN00 | crystal |
| 32M75NN1 | crown |
| 0G1890B02 | case back gasket - case back gasket |
| 0G1890B0 | case back gasket |
| ZHJ22G | band |
| BHA28G | band - leather band |
| BHZ44G | band - leather band |
| ZHA18G | band - leather band |
| ZHZ19G | band - leather band |
| ZHZ23G | band - leather band |
| ZHA10G | band |
| ZHJ24G | band |
| 1BA060A3BNG | hand - hour hand |
| 2BA085A3BNG | hand - minute hand |
| 08T09AGM | others - minute hand |
| 2BC080A1BAA | others - minute hand |
| 3BA125F1BNG | others - second hand |
| A120BS | others - push pin (for lb) |
| 0801754 | others - date dial |
| 0801778 | others - date dial |
| 82822090 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 0351546 | others - winding stem |
| 3Y020020 | others - case back |
| 3Y02002025 | others - case |
| 3Y020030XN14 | others - dial |
| 3Y020030XS14 | others - dial |
| 3Y020220XG14 | others - dial |
| 3Y020390XS19 | others - dial |
| 3Y029 | others - machine code |
| 08T57AGM | others - minute hand |
| 08SC29NG | others - second hand |
| 2BA075A1BAA | others - minute hand |
| 1BC055A1BAA | others - hour hand |
| 2BA085A3BDG | others - minute hand |
| 08T03DGM | others - minute hand |
| 07T03AGM | others - minute hand |
| 09T11DGH | others - hour hand |
| 1BA055A3BAA | others - hour hand |
| 1BC060A1BAA | others - hour hand |
| 08T09AGH | others - hour hand |
| 08T03AGH | others - hour hand |
| 08T45AGH | others - hour hand |