Introducing the Classic AVI Chronograph 42 P-51 Mustang: a luxurious timepiece featuring the Breitling 23 caliber, mechanical automatic movement, and a 48-hour power reserve. Crafted from 18K red gold, it offers 10-bar water resistance, a bidirectional bezel, and glareproof sapphire crystal. The black calfskin strap adds a touch of elegance. Reference: R233801A1B1X1