| Brand | IWC |
| Name | Portugieser Tourbillon Mystère Rétrograde |
| Reference | IW504601 |
| Diameter | 44 mm |
| Material | Platinum Case, Leather Strap |
| Features | Date, Date Pointer, Power Reserve Indicator, Retrograde, Water resistant to 100 ft, Tourbillon |
| Movement | Automatic Self-Winding Mechanical Power Reserve 7 days |
| Price | About $167,585 France - about €121,000 |