The Seiko 5E20-5B10 is a watch model based on the 5E20 movement.
Parts List
| REDN34JN01 | crystal |
| REDN34JN | crystal |
| 30M62NA3 | crown |
| 30M62NS4 | crown |
| 0H2800B01 | case back gasket - rotating bezel gasket |
| 0H2800B0 | case back gasket |
| BNA63G | band |
| BNA63S | band - leather band |
| WNA32S | band - leather band |
| WNA32G | band |
| WNJ46G | band |
| WNA32S-BK1S | clasp - clasp |
| WNJ46G-BK1G | clasp - clasp |
| WNA32G-BK1G | clasp - clasp |
| 82823540 | others - case ring |
| 5E205 | others - machine code |
| 5E205B10 | others - case back |
| 5E205B102E | others - case |
| 5E205B10CH | others - case |
| 5E205B40XG14 | others - dial |
| 5E205B50XN19 | others - dial |
| 5E205B50XS19 | others - dial |
| 5E205B60XS19 | others - dial |
| 5E205C20X91Z | others - dial |
| 5E205C20XB13 | others - dial |
| 5E205C20XG14 | others - dial |
| 5E205C30XS14 | others - dial |
| A170BS | others - push pin |
| 0351624 | others - winding stem |
| 1BD057A0BAA | others - hour hand |
| 2BA090A0BNG | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 2BD092A0BAC | others - minute hand |
| 2BC090A0BAA | others - minute hand |
| 2BF085A0BAA | others - minute hand |
| 2BF085A0BNG | others - minute hand |
| 09T18NGM | others - minute hand |
| 2BD092A0BAA | others - minute hand |
| 2BF085A0BNS | others - minute hand |
| 1BA057A0BNG | others - hour hand |
| 1BD065A0BAC | others - hour hand |
| 1BF060A0BAA | others - hour hand |
| 1BF060A0BNG | others - hour hand |
| 1BD065A0BAA | others - hour hand |
| 1BF060A0BNS | others - hour hand |
| 09TD2NGH | others - hour hand |
Caliber 5E20
