Circuit Performance 66.6mm OD to 57.1mm ID Black Plastic Polycarbonate Hub Centric Rings
| Country | USA |
| Brand | Corum |
| Manufacturer | Corum |
| Binding | Watch |
| ItemPartNumber | 277.931.06-0371-AN12 |
| Model | 27793106-0371-AN52 |
| UPCs | 617566666672 |
| EANs | 0617566666672 |
| ReleaseDate | 0000-00-00 |