The Seiko 1E20-6300 is a watch model based on the 1E20 movement.
Parts List
| ESLN08SJ01 | crystal |
| 30M36NE4 | crown |
| 0H1800N01 | case back gasket - case back gasket |
| 04VA2DGH | others - hour hand |
| 1E202210XS15 | others - dial |
| 1E203 | others - machine code |
| 1E20630043 | others - case |
| 82820700 | others - case ring |
| 04VA2DGM | others - minute hand |
| 0354930 | others - winding stem |
Caliber 1E20
