The Seiko 1E20-5060 is a watch model based on the 1E20 movement.
Parts List
| RE5N28GN | crystal |
| RE5N28GN00 | crystal - crystal (inorganic) |
| 30M68NA1 | crown - crown |
| OE150BA1S | case back gasket |
| 0H1500N01 | case back gasket - case back gasket |
| Z5090C | band - metal band |
| Z5090C-LKG | band - link |
| Z5090C-PB1 | clasp - parts for buckle/clasp |
| Z5090C-BK4G | clasp - clasp |
| 0351931 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 1E200130X994 | others - dial |
| 1E2050602N | others - case |
| 1E208 | others - machine code |
| 82723500 | others - case ring |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 04V02DGM | others - minute hand |
| 1CE030L2BDG | others - hour hand |
| 04V02DGH | others - hour hand |
Caliber 1E20
