@iwcwatches: The new Portugieser Perpetual Calendar 44 in 18-carat white gold with a Dune coloured dial, gold-plated hands, gold appliques, and a black alligator leather strap. The IWC-manufactured 52616 caliber drives the perpetual calendar via a single nightly switching impulse. Visible through the box-glass sapphire crystal on the back, the movement features a Pellaton winding system reinforced with components made of virtually wear-free ceramic, building up a power reserve of seven days in two barrels. 📸 IW503704 🔗 Link in Bio #IWCwatches | #watches | #luxurywatches | #watchtok | #IWC