Mens Breguet Classique Moonphase Perpetual Calendar #5327 watch, 18kt yellow gold case (39mm diameter, 9.8mm thickness), crocodile leather strap, silver engine-turned dial with blue-steeled Breguet hands and black Roman numerals, small seconds dial, perpetual calendar with date, day, month, and leap-year indicators, power reserve indicator, #502.3.DRP1 caliber 38 jewel self-winding mechanical movement, see-through clear sapphire crystal back and front, water resistant to 30 meters.