The Seiko 4J81-5A00 is a watch model based on the 4J81 movement.
Parts List
| SA0P16SN01 | crystal - crystal |
| 36M06NH2 | crown |
| 0F180NAAS | case back gasket - case back gasket |
| 86582840 | crystal gasket - plastic gasket for crystal |
| A033CM | band - band |
| 06ST04JG | others - second hand |
| 1BB042Y0BHG | others - hour hand |
| 2BB062Y0BHG | others - minute hand |
| 81190055 | others - bracelet fixing pipe |
| 4J815A009G | others - case |
| 82837480 | others - case ring |
| 81603929 | others - bracelet fixing pin |
| 4J815A00 | others - case back |
| 0351405 | others - winding stem |
| EA0040B0A | others - crown and stem gasket |