The Seiko 1E20-0250 is a watch model based on the 1E20 movement.
Parts List
| 220N04GM01 | crystal |
| 220N04GM02 | crystal |
| 30M86NH1 | crown |
| 30M86NS1 | crown |
| 0H1610N01 | case back gasket |
| 86573003 | crystal gasket |
| 86573020 | bezel gasket |
| DE04A | band - metal band |
| HK59A | band - leather band |
| 06V34NGM | others - minute hand |
| 0354931 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81602889 | others - bracelet fixing pin |
| 1E200250F0 | others - case |
| 1E200250F1 | others - case |
| 1E200680XS19 | others - dial |
| 1E200680XS29 | others - dial |
| 1E203 | others - machine code |
| 82311883 | others - bezel |
| 82311889 | others - bezel |
| 82732120 | others - case ring |
| 06V34NLM | others - minute hand |
| 06V44NGH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |
| 06V44NLH | others - hour hand |
Caliber 1E20
