Cartier

• cal. 115 finely engraved automatic nickel lever movement, 29 jewels, mono-metallic balance, 21k white gold pierced and engraved rotor • silvered guilloché dial, two fan-form sectors for day and night indication with Arabic numerals in 24-hour format, upper sector indicating day-time hours from 6 to 18, lower sector for night-time hours from 18 to 6, blued steel jump hour hand for day and night sectors decorated with sun and moon symbol at either end, subsidiary dial constant minutes • polished platinum circular Pasha case, T-bar lugs, screw-down cabochon sapphire-set cover for crown , sapphire crystal display back secured by 8 screws • case, dial and movement signed • with an 18k white gold Cartier deployant buckle