Case: The watch features a 39mm case crafted entirely from 18K yellow gold, paying homage to the bold elegance of the original Royal Oak. Just 8.1mm thick, this ultra-thin case maintains the sleek profile that defines the "Jumbo" lineage, with AP’s signature mix of brushed and polished surfaces. Dial: The highlight is the openworked architecture — a fully skeletonized dial that reveals the artistry and mechanics of the movement underneath. The intricate bridges and gear trains are beautifully hand-finished in grey tones, contrasting with the richness of the yellow gold case and applied yellow gold hour markers. Movement: Powered by the in-house Caliber 7124, an ultra-thin, self-winding movement designed specifically for the openworked Jumbo models. Beating at 28,800 vph (4 Hz) with a 57-hour power reserve, it combines precision with stunning aesthetics, all visible through the front and sapphire caseback. Bracelet: Integrated 18K yellow gold bracelet with folding clasp. The seamless integration and exceptional hand-finishing of each link ensure a luxurious yet wearable experience. Water Resistance: 50 meters (5 ATM) – suitable for everyday wear while retaining its fine watchmaking sophistication.