This watch comes with an extract from the archives. The Audemars Piguet Royal Oak Tourbillon Chronograph Yellow Gold Silver Dial 44mm Ref. 25977BA.OO.1205BA.01 is a bold statement of horological craftsmanship. Crafted entirely from 18-carat yellow gold, its 44mm case and integrated bracelet feature the iconic Royal Oak design with a brushed and polished finish. The silver “Grande Tapisserie” dial is adorned with gold-applied hour markers and hands, offering a refined contrast. Powered by the hand-wound Calibre AP 2889, this watch combines a chronograph and a tourbillon escapement, both visible through the sapphire crystal caseback. The tourbillon enhances precision by countering the effects of gravity, while the chronograph provides precise timing functions. With a 72-hour power reserve and a folding yellow gold clasp, this model balances technical sophistication with everyday practicality. The Ref. 25977BA.OO.1205BA.01 is a remarkable timepiece for those who value innovation and the timeless appeal of yellow gold.