The Seiko 1E20-5560 is a watch model based on the 1E20 movement.
Parts List
| K02N24JN01 | crystal |
| 30M68NA1 | crown - crown |
| 30M68NS1 | crown |
| 0H1100N01 | case back gasket |
| B5316G-LKG | band - link |
| B5316G | band - metal band |
| B5316G-BK4G | clasp - clasp |
| 03V14DGM | hand - minute hand |
| 1E200900XG14 | others - dial |
| 1E20556025 | others - case |
| 1E208 | others - machine code |
| 82734060 | others - case ring |
| B5316G-ES | others - eyelet screw |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 03V06NGH | others - hour hand |
| 0351931 | others - winding stem |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
