IWC has recently and quietly bolstered its Portofino collection with the new Portofino Hand-Wound Tourbillon Rétrograde Replica watch. The Portofino collection is mostly made up of simple time-only watches, so the addition of a more complicated piece is much welcome. For now, the IWC Portofino Hand-Wound Tourbillon Rétrograde is only available in an 18k red gold […]