The Seiko 5E20-5B40 is a watch model based on the 5E20 movement.
Parts List
| BA3N18JN01 | crystal - crystal |
| BA3N18JN | crystal - crystal |
| 30M62NA3 | crown |
| 0H2702B01 | case back gasket - rotating bezel gasket |
| 0H2702B0 | case back gasket |
| BRA55G | band |
| BRJ68G | band - leather band |
| BRJ66G | band |
| 0351624 | others - winding stem |
| 5E205 | others - machine code |
| 5E205B40 | others - case back |
| 5E205B40CH | others - case |
| 5E205B90XG14 | others - dial |
| 5E205B90XS14 | others - dial |
| 5E205C00XS19 | others - dial |
| 5E205C10XS19 | others - dial |
| 82830880 | others - case ring |
| A200BS | others - push pin |
| DZ0041B01 | others - crown and stem gasket |
| 2BA090A0BNG | others - minute hand |
| 2BH090A0BAA | others - minute hand |
| 2BA090A0BAL | others - minute hand |
| 2BC090A0BAA | others - minute hand |
| 09T26AGM | others - minute hand |
| 09T18NGM | others - minute hand |
| 1BA060A0BNG | others - hour hand |
| 1BA060A0BAL | others - hour hand |
| 1BC060A0BAA | others - hour hand |
| 1BH055A0BAA | others - hour hand |
| 09T04NGH | others - hour hand |
| 09T04ALH | others - hour hand |
| 09T44AGH | others - hour hand |
| 09T26AGN | others - hour hand |
Caliber 5E20
