The Seiko 2G28-504A is a watch model based on the 2G28 movement.
Parts List
| REEN03HK01 | crystal - crystal |
| 40MS3NG1 | crown - crown |
| 0G2600B01 | case back gasket - rotating bezel gasket |
| DZ0065B01 | case back gasket - button gasket |
| AK40B | band - band |
| 02SE01NG | others - second hand |
| 07L29DGH | others - hour hand |
| 07V19DGM | others - minute hand |
| 0351225 | others - winding stem |
| 82731490 | others - case ring |
| 2G28504A25 | others - case |
| 2G2810 | others - machine code |
| 2G285050XS14 | others - dial |
| A150BS | others - push pin |
Caliber 2G28
