| Brand | IWC |
| Name | Ingenieur Constant-Force Tourbillon |
| Reference | IW590001 |
| Diameter | 46 mm |
| Material | Ceramic Case, Leather Strap, Ceramic Bezel |
| Features | Moonphase, Power Reserve Indicator, Water resistant to 300 ft, Tourbillon |
| Movement | Manual Mechanical Power Reserve 96 hours |
| Price | About $354,560 France - about €256,000 |