This Rado True Square Open Heart lights up with top-class diamonds, a sparkling new dial and a monobloc square case in polished plasma high-tech ceramic. A sapphire crystal glass adds lustre to the dial with 12 diamond indexes and a rhodium-coloured diamond powder-like finish. A low-relief grey minute track circles yellow gold-coloured hour and minute hands with Super-LumiNova® highlights, and a yellow gold-coloured second hand. Cut-away windows draw the eye into the heart of the watch, where th...