The Seiko 6431-5090 is a watch model based on the 6431 movement.
Parts List
| SA3W34GN00 | crystal - crystal |
| 35M82NA1 | crown - crown |
| 0A2880N01 | case back gasket - case back gasket |
| 86561680 | crystal gasket - plastic gasket for crystal |
| GL14A | band - band |
| 09T04A1H | others - hour hand |
| 09T04A1M | others - minute hand |
| 6431509075 | others - case |
| 82702940 | others - case ring |
| 0354641 | others - winding stem |
| 64315190XS19 | others - dial |
| 64315190XS1Z | others - dial |
| A170BS | others - push pin |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
Caliber 6431
