Audemars Piguet
In the early '70s, designer Gerald Genta created Audemars Piguet's 'Royal Oak' watch in little over 12 hours - he was briefed to create something a little sportier, and so modeled his sketch on deep-sea diving helmets. Masterfully crafted in the brand's Swiss workshop, this version has an 18-karat pink gold case with a distinctive frosted finish created completely by hand - the technique took years to hone, and is intended to resemble diamond dust. It's detailed with eight distinctive screws around the octagonal bezel and has an exhibition case back, allowing you to view the 3120 calibre automatic movement at work. The hands and indices have a luminous coating, so they're easy to read against the tonal 'Grande Tapisserie' dial.