The Seiko 1E20-5830 is a watch model based on the 1E20 movement.
Parts List
| REBN28JN01 | crystal |
| REBN28JN | crystal |
| 30M98NA1 | crown |
| 0H1400N01 | case back gasket - case back gasket |
| 0H1400N0 | case back gasket |
| Z5220E | band |
| Z5220G | band |
| Z5220E-LKG | band - link |
| Z5220G-LKG | band - link |
| Z5220G-PB1 | clasp - parts for buckle/clasp |
| Z5220E-PB1 | clasp - parts for buckle/clasp |
| Z5220G-BK4G | clasp - clasp |
| Z5220E-BK4G | clasp - clasp |
| 03V12DGH | others - hour hand |
| 03V12DGM | others - minute hand |
| 0351931 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 82723120 | others - case ring |
| 81604169 | others - bracelet fixing pin |
| 1E201450XG14 | others - dial |
| 1E202140XS19 | others - dial |
| 1E205830 | others - case back |
| 1E20583025 | others - case |
| 1E208 | others - machine code |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
