This stealth black beauty from Hublot is a collaboration with Ayrton Senna Institute, and bears the signature of the former racing driver and deceased champion on the watch dial in red. Hublot presented this limited edition Big Bang to the public in the recent Sao Paulo Formula 1 Grand Prix. What is special about this watch is the chronograph spit-seconds hand, which is arrayed in green and yellow – the national colors of Brazil. The push-piece is also decked in red to complement Senna’s signature. The first 50 pieces of this watch has been exclusively reserved for distribution in Sao Paulo, Brazil.

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