IWC - Portofino Hand-Wound Big Date Watch IW516101

45 mm 18K white gold case, 13 mm thick, transparent back, 18K white gold bezel, convex sapphire crystal with arched edge, antireflective coating on both sides, grey dial with rhodium-plated hands and indices, calibre 59230 hand-wound movement with small hacking seconds, large date window and power reserve display, approximately 8 days of power reserve, black alligator leather strap, pin buckle. Water resistant to 3 bar.