IWC Portofino Automatic Moon Phase 18-Carat 5N Gold 37.1mm Silver Plated Diamond Dial IW659602 - BRAND NEW

The IWC Portofino collection has long stood as the Swiss manufacture's most overtly elegant family of watches, drawing its aesthetic inspiration from the sun-drenched Italian Riviera village that shares its name. Since its introduction, the Portofino line has been conceived for those who prize refinement over sportiness—clean dials, slim profiles, and complications chosen for their beauty as much as their utility. The moon phase is arguably the most poetic of all horological complications, and within the Portofino family it finds its most natural home.

Reference IW659602 represents the pinnacle expression of that philosophy. The 37.1mm case is fashioned entirely from 18-carat 5N gold, a rose-tinted alloy prized for its depth of colour and its lustrous polish. At that diameter the watch sits with quiet authority on the wrist—substantial enough to be noticed, slender enough to pass gracefully beneath a shirt cuff, and universally flattering across a wide range of wrist sizes. The warm gold tone reads as simultaneously classic and contemporary.

The silver-plated dial is a masterclass in restrained luxury. Roman numerals anchor the hours in the grand tradition of dress watchmaking, while diamond-set indices add a layer of brilliance that catches and refracts light with every movement of the wrist. The diamond-set bezel further amplifies this effect, creating a halo of fire around the dial that elevates the piece firmly into fine-jewellery-watch territory without sacrificing legibility. The moon phase aperture itself, rendered with IWC's characteristic precision, adds a celestial focal point that rewards quiet contemplation.

Powering the IW659602 is an automatic movement with a moon phase complication—a self-winding calibre befitting IWC's reputation for mechanical excellence. The automatic winding mechanism means the watch rewards regular wear, keeping the moon phase display accurately tracking the lunar cycle with minimal intervention from the owner. IWC's engineering pedigree ensures the movement is built to the exacting tolerances expected of a Swiss manufacture at this price tier.

A supple leather strap completes the ensemble, providing a refined and comfortable wearing experience that pairs naturally with formal and smart-casual attire alike. The combination of 5N gold, diamonds, and leather positions this reference as an ideal companion for evening occasions, milestone celebrations, or as a timeless gift of exceptional significance.

At Bizak & Co., we offer the IWC Portofino Automatic Moon Phase IW659602 brand new, ensuring you receive a pristine example of one of IWC's most desirable dress references. Our team of specialist advisors is ready to answer your questions, confirm current availability, and guide you through a seamless purchase experience. Contact us today or shop online at bizakandco.com to secure this extraordinary timepiece at the best price.