A Lange & Sohne Langematik Big Date Mens Watch 308.021

18k Yellow Gold case, Sapphire Crystal Caseback, 18k Yellow Gold,Fluted Crown, Leather - Brown Crocodile strap. Silver dial, Crystal: Sapphire - Anti-Reflective on Inside,Domed on both sides. Self-winding mechanical movement, Automatic Two-digit Big Date at 12, Small seconds at 3,Blued-steel seconds hand 46-hour power reserve.