Cartier Ballon Bleu de Cartier

The Ballon Bleu de Cartier, reference WSBB0044, has a round steel case that measures 33 mm in diameter. The case is 10.49 mm thick. Calibre 1853 is a self-winding mechanical movement with a 37 hour power reserve. A sapphire crystal covers the silvered guilloché dial, which shows hours, minutes and central seconds. The hands are blued steel and sword-shaped. The crown is fluted steel and is set with a synthetic cabochon-shaped spinel. An interchangeable steel bracelet is fitted to the watch. Cartier rates the case to 3 bar, approximately 30 metres.