IWC IW392103 Da Vinci Perpetual Calendar Chronograph SS Gray Dial

The IWC Da Vinci Perpetual Calendar Chronograph ref. IW392103 is a masterful fusion of horological complexity and elegant restraint, introduced by IWC at SIHH 2017. Housed in a 43 mm stainless steel case with articulated lugs, it features the in‑house automatic calibre 89630, which ingeniously integrates a flyback chronograph and perpetual calendar—complete with date, day, month, four‑digit year, and moon‑phase—into a single subdial at 12 o’clock. The slate‑grey dial, paired with black Santoni alligator strap, offers superb legibility and refined contrast. The movement delivers a robust 68‑hour power reserve, beats at 28,800 vph, and is beautifully finished with a red‑gold rotor visible through the sapphire exhibition caseback. The moon‑phase display is remarkably precise, diverging by just one day every 577.5 years. Water‑resistant to 30 meters, this model stands as a collector’s favorite for its technical ingenuity, historical lineage tracing back to the 1985 Da Vinci perpetual calendar, and its rarity as one of the few IWC watches to combine chronograph and full perpetual calendar complications in such a compact and harmonious design. Like New with IWC box and papers dated 2017.