The Seiko 7N42-F040 is a watch model based on the 7N42 movement.
Parts List
| 275PF2H101 | crystal |
| 8M40AFSNG0 | crown |
| 8656F230 | case back gasket |
| 8656F250 | crystal gasket |
| B1879L | band |
| B1879L-LKG | band - link |
| B1879L-PB1 | clasp - parts for buckle/clasp |
| B1879L-BK2S | clasp - clasp |
| 3AA125F1ANG | others - second hand |
| 0351892 | others - winding stem |
| 81180249 | others - bracelet fixing pipe |
| 81604939 | others - bracelet fixing pin |
| 8270F250 | others - case ring |
| 0878580 | others - date dial |
| 7N42F040 | others - case back |
| 7N42F040SAA | others - case |
| 7N42F05LXS14 | others - dial |
| 2AH110FLBBG | others - minute hand |
| 1AH075FLBBG | others - hour hand |