This Big Bang Unico is a mechanical hard hitter, too. Weighing in at 49.5 grams and engineered to be feather-like on Djokovic's wrist, both on court and off it takes match point by leaving certain elements courtside. Like the alchemists, metal founders and astrophysicists of time who work alongside them, Hublot’s watchmakers have once again played around with component materials to achieve unprecedented lightness. The fully skeletonised dial stripped to the nearest gram, as have the lugs and ears. Conventional sapphire crystal has lost its tiebreak to tempered Gorilla glass, a material used in high-end electronics that is twice as light as sapphire. The same goes for the container in Peek Carbon, a lightweight as well as robust composite that leaves other materials standing. Yet another winning shot by the Swiss engineers of time is the use of Hublot’s Unico manufacture movement. Crafted from aluminium, it weighs a significant 6.1 grams less than a standard Unico calibre, making it the ideal match for Djokovic's style: fast, supple, athletic, playing near his line and hitting the ball deep into his opponent’s court. Like Djokovic himself, this movement is a game changer. One of Hublot’s first 100% in-house calibres, it rewrote the rules by positioning the automatic chronograph mechanism dial-side. It is also the ideal partner for the champion’s watch, whose skeleton dial reveals a completely reworked design that includes a double coupling system and a column wheel on the dial side.