The Seiko Y799-3020 is a watch model based on the Y799 movement.
Parts List
| ESGW86LM01 | crystal |
| ESGW86LM02 | crystal |
| ESGW86LM03 | crystal |
| 0A2550B01 | case back gasket |
| 86569761 | crystal gasket |
| 80605223 | pusher |
| 295LC | band - rubber band |
| 293LC | band - rubber band |
| 297LC | band - rubber band |
| A170CS | others - push pin |
| Y7990 | others - machine code |
| Y7993020N2 | others - case |
| Y7993020N2A | others - case |
| Y7993020N2B | others - case |
| EG0060B01 | others - button gasket |
| 81400683 | others - button spring clip |