Continuing its 142-year history of precision, TAG Heuer has added two models to its Sports Vision Eyewear series by Ross Lovegrove. The range exemplifies the brand's avant-garde advances in technology and design. The Curve model (from $2,200 to $2,900) provides all-round protection against the sun as well as a personalised head grip; while the 27 Degrees model (left; from $2,100 to $2,600) has levelled lenses and invisible hinges made of 18 hi-precision pieces. Hi-tech materials, such as shape-memory titanium and exclusive aeronautical and automotive alloys, are used along with soft composite rubber and anallergic silicon to achieve lightness, strength and comfort. They also have unbreakable polycarbonate UV-proof lenses with anti-glare and anti-scratch treatment on both sides. Available at Berlin Optical outlets, or visit www.tagheuer.com for details.