The Seiko 5Y31-5000 is a watch model based on the 5Y31 movement.
Parts List
| ES8N18GN00 | crystal |
| ES8N18GN | crystal |
| 30MA6NA1 | crown - crown |
| 30MA6NS1 | crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2600N01 | case back gasket - case back gasket |
| 0G0055B0 | case back gasket |
| Z1389G | band |
| B1530S | band - metal band |
| B1530G | band |
| Z1390G | band |
| Z1389G-BK5G | clasp - clasp |
| Z1390G-BK5G | clasp - clasp |
| B1530G-BK5G | clasp - clasp |
| 09T04N1H | others - hour hand |
| 0351670 | others - winding stem |
| 08T10DGH | others - hour hand |
| 5Y31500011 | others - case |
| 5Y31500025 | others - case |
| 5Y315000XG14 | others - dial |
| 5Y315000XY14 | others - dial |
| 5Y315010XG14 | others - dial |
| 5Y315010XL14 | others - dial |
| 5Y315030XG14 | others - dial |
| 5Y315030XY14 | others - dial |
| 5Y315040XG14 | others - dial |
| 5Y315040XL14 | others - dial |
| 5Y315060XB14 | others - dial |
| 5Y315060XG14 | others - dial |
| 5Y315060XS13 | others - dial |
| 5Y315070X999 | others - dial |
| 5Y315080XG14 | others - dial |
| 5Y315090X999 | others - dial |
| 5Y315100XG14 | others - dial |
| 5Y315100XY14 | others - dial |
| 5Y315110XG14 | others - dial |
| 5Y315110XL14 | others - dial |
| 5Y319 | others - machine code |
| 82804140 | others - case ring |
| A170BS | others - push pin |
| 08T10DGM | others - minute hand |
| 09T18NSM | others - minute hand |
| 2BA090A0BNG | others - minute hand |
| 08T32DGM | others - minute hand |
| 13SC04A2 | others - second hand |
| 13SC04ES | others - second hand |
| 08T32DGH | others - hour hand |
| 09T32DGH | others - hour hand |
| 09T32DGM | others - minute hand |
| 09T18NGM | others - minute hand |
| 09T04NSH | others - hour hand |