Introducing the Classic AVI Chronograph 42 Mosquito: a precision timepiece featuring the Breitling 23 caliber, mechanical automatic movement, and a 48-hour power reserve. Crafted from stainless steel, it offers 10-bar water resistance, a bidirectional ratcheted bezel, and glareproof sapphire crystal. The brown calfskin strap adds a touch of elegance. Reference: Y233801A1B1X1