The Seiko 1E20-6039 is a watch model based on the 1E20 movement.
Parts List
| K03N24JN | crystal |
| K03N24JN01 | crystal |
| 30M98NA1 | crown |
| 0H1200N01 | case back gasket |
| 0H1200N0 | case back gasket |
| Z5278G | band |
| Z5278G-LKG | band - link |
| Z5278G-PB1 | clasp - parts for buckle/clasp |
| Z5278G-BK4G | clasp - clasp |
| 03V12DGH | others - hour hand |
| 03V12DGM | others - minute hand |
| 0351931 | others - winding stem |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 1E201760XG14 | others - dial |
| 1E201860XB15 | others - dial |
| 1E201860XG15 | others - dial |
| 1E206039 | others - case back |
| 1E20603925 | others - case |
| 1E208 | others - machine code |
| 82802960 | others - case ring |
| DZ0041B01 | others - crown and stem gasket |
| K03N24JN | crystal |
| K03N24JN01 | crystal |
| 30M98NA1 | crown |
| 0H1200N01 | case back gasket |
| 0H1200N0 | case back gasket |
| Z5278G | band |
| Z5278G-LKG | band - link |
| Z5278G-PB1 | clasp - parts for buckle/clasp |
| Z5278G-BK4G | clasp - clasp |
| 03V12DGH | others - hour hand |
| 03V12DGM | others - minute hand |
| 0351931 | others - winding stem |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 1E201760XG14 | others - dial |
| 1E201860XB15 | others - dial |
| 1E201860XG15 | others - dial |
| 1E206039 | others - case back |
| 1E20603925 | others - case |
| 1E208 | others - machine code |
| 82802960 | others - case ring |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
