The Seiko 5P31-5049 is a watch model based on the 5P31 movement.
Parts List
| BA2W77HN01 | crystal |
| BA2W77HN | crystal |
| 35M39NA1 | crown |
| 35M39NS1 | crown |
| 0F220BAA3 | case back gasket - case back gasket |
| 0F220BAA | case back gasket |
| 86581010 | crystal gasket - plastic gasket for crystal |
| Z1315G | band - metal band |
| Z1315S | band - metal band |
| NL | band |
| Z1315S-BK5S | clasp - clasp |
| Z1315G-BK5G | clasp - clasp |
| 10SC25T2 | hand - second hand |
| 3AA125F1A6S | others - second hand |
| 3AA125F1ANG | others - second hand |
| 09T09DCM | others - minute hand |
| 1BA065A1BNG | others - hour hand |
| 2BA095A1BDG | others - minute hand |
| EB0055B01 | others - crown and stem gasket |
| 5P315040 | others - case back |
| 5P31504961 | others - case |
| 5P31504975 | others - case |
| 5P315060XG14 | others - dial |
| 5P315060XS13 | others - dial |
| 82802310 | others - case ring |
| A170BS | others - push pin |
| EB0055B0 | others - crown gasket |
| 10SC25T1 | others - second hand |
| 09T09DAM | others - minute hand |
| 1BA065A1BNS | others - hour hand |
| 2BA095A1BDS | others - minute hand |