The Seiko 5Y39-7240 is a watch model based on the 5Y39 movement.
Parts List
| 280N10GN00 | crystal - mineral crystal |
| 280N10GN | crystal |
| 30MA6NA1 | crown - crown |
| 0G0055B0 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2600B01 | case back gasket - case back gasket |
| Z1595K | band |
| Z1595K-LKG | band - link |
| Z1595L | band - metal band |
| Z1595L-LKG | band - link |
| Z1595L-BK4G | clasp - clasp |
| Z1595K-BK4G | clasp - clasp |
| 12T02N1M | others - minute hand |
| 82802420 | others - case ring |
| 0801724 | others - date dial |
| 0801727 | others - date dial |
| 0801737 | others - date dial |
| 5Y397028XB34 | others - dial |
| 5Y397028XG44 | others - dial |
| 5Y397240 | others - case back |
| 5Y39724025Z | others - case |
| 5Y397478XS19 | others - dial |
| 5Y399 | others - machine code |
| A160BS | others - push pin |
| 0351670 | others - winding stem |
| 12T23DGM | others - minute hand |
| 12T23DGH | others - hour hand |
| 12T02N1H | others - hour hand |
| 12T44NBM | others - minute hand |
| 12T44NBH | others - hour hand |