The Seiko 8800-5021 is a watch model based on the 8800 movement.
Parts List
| 440N01AN00 | crystal |
| 80E05NC1 | crown |
| 80E05NA1 | crown |
| 0B0205B01 | case back gasket |
| 0Z0165B01 | case back gasket |
Caliber 8800
Other models with the same movement
| 8800-5010 |
| 8800-5011 |
| 8800-5020 |
| 8800-5051 |
| 8800-5058 |
| 8800-5061 |
| 8800-5068 |
| 8800-5080 |
| 8800-5081 |
| 8800-5090 |
| 8800-5091 |
| 8800-5100 |
| 8800-5101 |
| 8800-5120 |