The Red Gold IWC Portofino Chronograph Replica Watch will come with a special case back engraving They are available in two dial colors, slate gray (new for this model line) and silver plated (not new for this model line). Each houses the same Calibre 75320 (based off of the Valjoux 7750) in their 42mm red gold cases.
Silver-plated dial version: Ref. IW391020 IWC recently revamped their IWC Portofino Replica Watch collectoin at SIHH this year. For Baselworld they will release a few new watches, this is one of them.
It will feature a pin buckle, although a deployant clasp would be preferred by many due to the likely fact that the watch will cost over $20,000. 
Slate gray dial version: IWC Replica Watch Although they will have other new watches for Baselworld 2014 this is a very strong start and it is likely that their strong performance at SIHH this year is just the start of a very successful year for IWC. The Portofino Chronograph used to come in only stainless steel but now it will come in one more metal, red gold.