Cartier Ballon Bleu de Cartier

The Cartier Ballon Bleu de Cartier reference W2BB0039 has a 42 mm steel case that is 13 mm thick. Caliber 1847 MC is a self-winding mechanical movement with a 40 hour power reserve. A sapphire crystal covers the silvered guilloché dial. The watch shows hours, minutes and central seconds, plus a date in a calendar aperture at 3 o'clock. The hands are blued steel and sword-shaped. The fluted 18K yellow gold crown is set with a synthetic cabochon-shaped spinel. Cartier rates the case to 30 metres. An interchangeable two-tone strap is fitted to the watch.