The Breguet Classique Grandes Complications Tourbillon Chronograph watch, REf. 3577BA/15/9V6, features a 38.2mm case in 18-karat yellow gold, a convex sapphire crystal, an engine-turned guilloche dial in silvered gold, and a crocodile leather strap with a gold buckle. This Breguet Tourbillon Chronograph wristwatch is animated by a complex handwound mechanical movement which incorporates a one-minute tourbillon and a column-wheel controlled chronograph. A sapphire crystal exhibition back reveals the intricate movement and its fine decorations. This Breguet timepiece is water resistant to 30 meters.