Ref. IW516409 - The Portofino Hand-Wound Moon Phase is a reference to the first Portofino from 1984, which also featured a moon phase display. Now, for the first time, this popular model is available in 18-karat red gold with a silver-plated dial, gold-plated hands, and solid gold appliques. This exclusive timepiece is powered by the IWC-manufactured 59800 hand-wound movement, which offers an eight-day power reserve when fully wound. The understated yet elegant watch is presented on a blue, hand-dyed alligator leather strap from the Italian shoe manufacturer Santoni.