Audemars Piguet Royal Oak Offshore Chronograph 25770BA

Audemars Piguet Royal Oak Offshore Chronograph reference 25770BA.OO.D009XX.01 is a highly rare and historical timepiece, representing the first generation of the famously bold Royal Oak Offshore collection specifically configured on a factory leather strap. It boasts a substantial 42mm brushed and polished 18-carat yellow gold case featuring the signature octagonal bezel locked down by eight visible, hexagonal white gold screws. Its monochromatic and opulent aesthetic is driven by a matching champagne gold-toned dial dressed in the collection's traditional, tightly woven "Petite Tapisserie" hobnail pattern. The dial layout includes luminescent stick indices and baton hands, a magnified date aperture nestled at 3 o'clock, a prominent outer tachymeter scale, and a trio of classic sub-registers configured for running seconds, a 30-minute counter, and a 12-hour timer.