The Seiko 1E20-0280 is a watch model based on the 1E20 movement.
Parts List
| 145N02GM01 | crystal - crystal (inorganic) |
| 30M68NA1 | crown - crown |
| 0H1300N01 | case back gasket |
| B5288C | band - metal band |
| B5288C-BK5S | clasp - buckle |
| 05V02D1H | others - hour hand |
| 06V12DGM | others - minute hand |
| 82732260 | others - case ring |
| 0351931 | others - winding stem |
| 1E2002802N | others - case |
| 1E200740XN14 | others - dial |
| 1E208 | others - machine code |
| B5288C-EP2 | others - endpiece |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
