The Seiko 1E20-5010 is a watch model based on the 1E20 movement.
Parts List
| SAAN16SN00 | crystal - crystal |
| 30M62NA3 | crown |
| 0H1200N01 | case back gasket |
| RI046 | band - band |
| 81922021 | clasp - clasp |
| 04V10DGH | others - hour hand |
| 04V10DGM | others - minute hand |
| 0351931 | others - winding stem |
| 1E20501025 | others - case |
| 82720820 | others - case ring |
| 1E200030XG14 | others - dial |
| 1E208 | others - machine code |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
