The Seiko 1E20-5279 is a watch model based on the 1E20 movement.
Parts List
| AL0N58GN00 | crystal |
| AL0N58GN | crystal |
| 30M68NA1 | crown - crown |
| 0H1400N01 | case back gasket - case back gasket |
| 0H1400N0 | case back gasket |
| E5013G | band |
| E5013G-BK4G | clasp - clasp |
| E5013G-PB1 | clasp - parts for buckle/clasp |
| 04V18DGH | others - hour hand |
| 04V18DGM | others - minute hand |
| E5013G-ES | others - eyelet screw |
| 0351931 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81180229 | others - bracelet fixing pipe |
| 82730280 | others - case ring |
| 1E201320XG14 | others - dial |
| 1E20527925 | others - case |
| 1E208 | others - machine code |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 2CE040LMBDG | others - minute hand |
| 1CE027LMBDG | others - hour hand |
Caliber 1E20
