The Seiko W444-4000 is a watch model based on the W444 movement.
Parts List
| SA0P73L20A | crystal - crystal |
| 0G254BE12 | case back gasket - case back gasket |
| 86641270 | crystal gasket - plastic gasket for crystal |
| HF1Z01PAB0 | pusher - button |
| HF2Z01PAB0 | pusher - button |
| HF2Z01PAL0 | pusher - button |
| HF3Z01PMB0 | pusher - front button |
| 4J75ZB | band - band |
| DEA6JB | band - band |
| 4J75ZB-BKG | clasp - buckle |
| 4J75ZB-PB4 | clasp - parts for buckle |
| 86511159 | others - conducting plate |
| 86511179 | others - conducting plate |
| A170BS | others - push pin |
| W44453 | others - machine code |
| W444400001D | others - case |
| W4444000 | others - case back |
| W444400001E | others - case |
| W444400002E | others - case |
| AD006BAD1 | others - crown and stem gasket |
| 83200219 | others - button spring clip |
| 81351999 | others - button spring |
| 81518099 | others - case back screw |