IWC Schaffhausen Portugieser Perpetual Calendar 44

The IWC Schaffhausen Portugieser Perpetual Calendar 44, reference IW503702, has a 44.4 mm case in 18 carat Armor Gold. The case measures 15 mm thick and carries a 50 metre water resistance rating. A sapphire crystal covers the black dial, and a display back shows the movement beneath. The self-winding calibre 52616, an IWC-manufactured movement, runs with 168 hours of power reserve. The perpetual calendar tracks date, day, month, year and moon phase, with a power reserve display and small seconds also on the dial. The strap is black alligator leather by Santoni, fitted at 22 mm.