Tank Obus — Cartier London · White Gold, Blue Enamel Numerals

Early white-gold Obus sold by Cartier London, 25 mm square, with blue enamelEnamelA glass-based decorative material fused to metal by firing. In traditional dial-making, powdered enamel is applied in layers and heated in a kiln. A dealer’s colour or finish description alone does not establish this construction. Roman numerals; manual, 18 jewelsJewelA natural or synthetic stone used as a bearing or endstone for a movement pivot..