The Carrera range gets a makeover and materials take centre stage for this racy brand Tag Heuer's association with motorsport is well documented. It has links to Formula One, the Indianapolis 500 and the Indy Racing League, and its Carrera line of watches launched in 1964 was created as a tribute to five-time world champion Juan Manuel Fangio, the winner of the 1953 Carrera Panamericana Mexico Road Race. This year, however, it was a Tag Heuer watch that inspired the main attraction at the watchmaker's booth. The GT sports car on show featured a dashboard mounted with the Grand Carrera Calibre 36 RS Caliper Concept Chronograph, the watchmaker's newest concept watch. The car, the K.O 7, was launched at the Geneva Motor show in March and was designed by Ken Okuyama. 'Tag Heuer chronographs are constructed in rich lightweight materials of the finest quality,' Mr Okuyama said. 'Like the K.O 7, their powerful proportions catch your eye first and then you discover the depth of refinement, the beautiful craftsmanship and the attention to detail. Collaborating with Tag Heuer made it possible to demonstrate something in common between our two industries: an endless quest for quality, performances and design innovations driven by new technologies.' The car is made from lightweight materials increasingly found in watches, including aluminium, titanium and carbon, which in the car industry enable an 'extraordinary horsepower-to-weight relationship'. The materials are said to have a reduced environmental impact on high-performance sports cars. The car may have attracted large crowds, but so too did the watchmaker's new concept watch, the Grand Carrera Calibre 36 RS Caliper Concept Chronograph. The watch is considered the first mechanical automatic chronograph with the ability to measure and display 1/10th of a second by virtue of its Caliper Rotating Scale. A central seconds hand marks off the 1/10th intervals. Tag Heuer's Rotating System (RS) replaces traditional hands with dashboard-like discs that allow the owner to easily read the functions, which on this watch include small seconds, second time zone or chronograph time. The Calibre 36 RS movement powers two Rotating Systems to indicate the chronograph minutes at 3o'clock and the chronograph hours at 6o'clock, as well as the linear second at 9o'clock. Tag Heuer's avant-garde design appears in a 43mm black titanium case with carbide coating. Chronograph buttons are reminiscent of the pedals of a GT car. The strap is titanium carbide coated and rubber. Two luxury diamond models have been added to the Grand Carrera line. The Carrera Calibre 6 RS Diamond Bezel is studded with 68 diamonds and comes with a brown dial and either an alligator strap or steel bracelet. The Carrera Grande Date GMT Calibre 8 RS Diamond Bezel has 72 diamonds on the bezel. The case is 42.5mm, with the Grand Date at the 12 position and the Rotating GMT System, which displays the second time zone, at 6o'clock. However, the iconic piece in the Grand Carrera series this year is the Chronograph Calibre 17 RS Rose Gold edition. Limited to 1,000 pieces, this 18-carat gold watch has the classic look of a Tag Heuer chronograph, with a hand-applied date window at 6o'clock, screw-in pushbuttons and a screw-in crown. There will be 500 pieces with a silver dial and 500 with a brown dial.