Hublot. An 18K rose gold, titanium, tantal and diamond set automatic calendar chronograph wristwatch Model: Big Bang Reference: 301.W Date: Purchased 14th February 2013 Movement: 27-jewel ETA Cal.7750 automatic, skeletonised and engraved rotor Dial: Black, applied gilt alternating baton and Arabic numeral markers, red outer minute divisions with white Arabic minute markers, silver edged subsidiary 30 minute and 12 hour recording at 6 and 9, subsidiary seconds at 3, date aperture between 4 and 5, gilt pointed baton hands with luminous inserts, red centre chronograph hand Case: Brushed and polished round, exhibition back secured by 6 screws, baguette diamond set bezel with 6 screws, diamond set lugs and strap hood, black band, crown flanked by twin rectangular buttons, No.643348 Strap/Bracelet: Black Clous de Paris rubber Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 45mm Accompaniments: Hublot exhibition box, outer card, International Warranty card Footnotes: Hublot launched the 'Big Bang' wristwatch, so called for its fusion of innovative materials including steel, carbon, rubber, titanium and Kevlar in 2005 and won the watch of the year award the same year. The current example is emblematic of this fusion with a mixture of rose gold, titanium, tantal and diamonds. For further information on this lot please visit Bonhams.com