The Seiko 8J81-6B70 is a watch model based on the 8J81 movement.
Parts List
| 260P08SB0A | crystal |
| 260P08SB01 | crystal - crystal |
| 40MF0NE2 | crown - crown |
| 40MF0NS2 | crown - crown |
| 0F250BAD2 | case back gasket - case back gasket |
| 86582040 | crystal gasket - plastic gasket for crystal |
| A082CZ | band - band |
| A086AB | band - band |
| A082CB | band - metal band |
| 2BB107Y0BHS | others - minute hand |
| 10ST10JS | others - second hand |
| 1BB070Y0BES | others - hour hand |
| 2BB107Y0BES | others - minute hand |
| 1BB070Y0BHS | others - hour hand |
| 1BB070Y0BHG | others - hour hand |
| 2BB107Y0BHG | others - minute hand |
| 10ST10JG | others - second hand |
| 81606439 | others - bracelet fixing pin |
| 81190075 | others - bracelet fixing pipe |
| 0351406 | others - winding stem |
| 82835680 | others - case ring |
| 8J816B7001 | others - case |
| 8J816B70 | others - case back |
| 8J816B7002 | others - case |
| EA0040B0A | others - crown and stem gasket |