The Seiko 1E20-5410 is a watch model based on the 1E20 movement.
Parts List
| RE5N20GN00 | crystal - crystal |
| 30M68NA1 | crown - crown |
| 0H1400N01 | case back gasket - case back gasket |
| Z5141C | band - metal band |
| 81603389 | band - bracelet fixing pin |
| Z5141C-BK3S | clasp - buckle |
| 03V10DGH | others - hour hand |
| 03V10DGM | others - minute hand |
| 03V06NGH | others - hour hand |
| 0351931 | others - winding stem |
| 82723120 | others - case ring |
| 81181839 | others - bracelet fixing pipe |
| 1E200200XN14 | others - dial |
| 1E2054102N | others - case |
| 1E208 | others - machine code |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 04V03DGM | others - minute hand |
Caliber 1E20
