The Seiko 4J81-0AC0 is a watch model based on the 4J81 movement.
Parts List
| 200P20SB0B | crystal - crystal |
| 36M06NS2 | crown - crown (3h) |
| 0F190BAD2 | case back gasket - case back gasket |
| 86582380 | crystal gasket - plastic gasket for crystal |
| AC33AW | band - band |
| 08ST06JG | others - second hand |
| 1BB050Y0BHG | others - hour hand |
| 2BB080Y2BHG | others - minute hand |
| 82836330 | others - case ring |
| 0351405 | others - winding stem |
| 4J810AC001 | others - case |
| 4J810AC0 | others - case back |
| S130BS | others - push pin |
| EA0040B0A | others - crown and stem gasket |