Bulgari introduces the Gérald Genta Arena Bi-Retrograde Sport. Built around the famous massive, round Arena case, an expression of the revolutionary spirit of the great 20th century timepiece designer, the watch features a smooth, wide and curved bezel in brushed titanium, the same material as the case. It combines two complications: that of the jumping hours, displayed through a window at 12 o'clock, and that of the retrograde minutes, traced on an arc across the upper half of the anthracite black dial, on which the minute hand advances and returns every 60 minutes. Similarly, the date is set in a smaller arc at 6 o'clock. It is powered by the BVL 300 calibre, a bi-directional self-winding mechanical movement with a 42-hour power reserve, visible through the scratch-resistant sapphire back. The strap is matt black alligator with a titanium pin buckle. Price: 15,000 euros.