The Seiko 1E20-5290 is a watch model based on the 1E20 movement.
Parts List
| RE6N34GN00 | crystal - crystal |
| 30M54NA1 | crown |
| 0H2100N01 | case back gasket - case back gasket |
| NL06A | band - band |
| BJA10G | band - leather band |
| BJJ09G | band - leather band |
| WJA10C | band - leather band |
| WJA14C | band - leather band |
| WJJ06G | band - leather band |
| 04V04AGH | others - hour hand |
| 04V04CGM | others - minute hand |
| A130AS | others - push pin (for lb) |
| 1E200560X999 | others - dial |
| 1E201040X999 | others - dial |
| 1E201040XG19 | others - dial |
| 1E20529025 | others - case |
| 1E208 | others - machine code |
| 1E2052902N | others - case |
| 82730540 | others - case ring |
| 0351931 | others - winding stem |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 04V04DGM | others - minute hand |
| 04V04NGH | others - hour hand |
Caliber 1E20
