Hublot Big Bang 'Aero Bang' Skeleton 18kt Rose Gold with Tantalum Bezel Chronograph Automatic Limited Edition, 18kt King Gold Case with Unique Tantalum Bezel (Tantalum is a chemical element with symbol Ta and atomic number 73. Tungsten is super dense and almost impossible to melt), Extremely Rare Skeletonized Dial with Rose Gold Applique Indices, Self-Winding Hublot Chronograph Automatic Movement, Skeleton Exhibition Case Back, Black Rubber Strap with Fold-Over Deployant Buckle, 44.5mm, Limited Edition of Only 500 Pieces SUPER RARE - HUBLOT BIG BANG "AERO BANG" ROSE GOLD & TANTALUM - SKELETON CHRONOGRAPH AUTOMATIC..... ** LIMITED TO ONLY 500 WORLDWIDE ** “Aero” - aired in a stylishly designed Big Bang case. The movement is visible through the skeleton-like cut-out dial, and intrigues the wearer while giving the chronograph a new depth. In matching tones, this timepiece breaks new ground from the inside while keeping its profile, combining in an unusual design both sharp and round angles. Extremely rare and highly collectible. Also known as: Hublot 310.PT.1180.RX, Hublot Aero Bang 310.PT.1180.RX, 310PT1180RX