The Seiko W852-4000 is a watch model based on the W852 movement.
Parts List
| ES0P69J20B | crystal - crystal |
| ES0P69J20E | crystal - crystal |
| 0F309BEA1 | case back gasket - case back gasket |
| 86640970 | crystal gasket - plastic gasket for crystal |
| HB6Z01PAZ1 | pusher - button |
| HB7Z01PAZ1 | pusher - button (4h) |
| HB3Z01PAS0 | pusher - front button |
| HB5Z01PAZ0 | pusher - button(10h) |
| HB5Z01PAZ1 | pusher - button(10h) |
| HB6Z01PAZ0 | pusher - button |
| HB7Z01PAZ0 | pusher - button (4h) |
| FF28AB | band - band |
| FF29AB | band - band |
| FEM0AB | band - band |
| FEM1AB | band - leather band |
| W8524000N2C | others - case |
| 82432237 | others - decorative bezel |
| HB4Z01PAZ0 | others - push button(other pos.) |
| AD006BA11 | others - crown and stem gasket |
| 83200219 | others - button spring clip |
| 81351999 | others - button spring |
| 81514639 | others - case back screw |
| W8524000N2D | others - case |
| 82432238 | others - decorative bezel |
| T120BS | others - push pin |
| T140BS | others - push pin |
| T190BS | others - push pin |