White gold and diamond Tank Louis watch

Despite reinventions of the iconic Tank watch spanning more than a century, the clean, crisp lines and stylistic square face of this exquisite timepiece remain as desirable now as when they were originally designed by Louis Cartier in 1917. Updated with new finishes to suit contemporary tastes – this one in 18-karat gold with a genuine alligator skin strap – the case hosts a stamped silvered dial with distinct Roman numerals, sword-shaped hands made from blue steel and a scattering of brilliant-cut diamonds around the perimeter.