HUBLOT CLASSIC FUSION AEROFUSION CHRONOGRAPH KING GOLD DIAMONDS | REF. 525.XO.0180.LR.1104 45 mm | King gold | Sapphire skeleton | Diamond-set bezel | Current collection The Classic Fusion Aerofusion Chronograph pares Hublot's round Classic Fusion case back to essentials, replacing the solid dial with an open sapphire crystal display that exposes the entire HUB1155 chronograph movement. This King Gold Diamonds execution dresses the round case in warm King Gold with a diamond-set bezel, contrasting jewellery finishing against the technical, skeletonised dial. CASE Material: satin-finished and polished 18K King Gold. Architecture: round case, secured with the Classic Fusion's signature H-shaped titanium screws on the bezel. Diameter: 45 mm. Thickness: 13.40 mm. Crown: screw-down. Crystal: sapphire, with anti-reflective treatment. Water resistance: 50 metres. BEZEL Polished 18K King Gold bezel, set with 126 diamonds totalling approximately 1.47 carats, secured with 6 H-shaped titanium screws. DIAL Colour: black, fully skeletonised sapphire crystal dial exposing the movement. Hands: gold-tone hands. Markers: index hour markers. Functions: hours, minutes, small seconds, chronograph with 30 minute counter at 9 o'clock and small seconds at 3 o'clock, date at 6 o'clock. MOVEMENT Calibre: HUB1155. Type: self-winding skeleton chronograph, Swiss lever escapement. Jewels: 60. Frequency: 28,800 vibrations per hour (4 Hz). Power reserve: 42 hours. Number of components: 207. Oscillating weight: Hublot design open-worked tungsten rotor, microblasted and plated bridges visible from the dial side. BRACELET & CLASP Black rubber strap with an alligator leather outer, secured with an 18K King Gold and black-plated titanium deployant buckle. YEAR INTRODUCED The Classic Fusion Aerofusion Chronograph King Gold Diamonds 45mm is part of Hublot's current Classic Fusion collection.