Platinum & diamond Chronometer no. 5018

Case: Platinum, three-body, brushed and polished, the band and bow outlined with black enamel, the bezel set with 79 round diamonds Dial: simple hour, min. Brushed silver with applied rose-cut diamond-set radial Roman numerals, outer applied white gold minute markers. Rose-cut diamond-set Cathédrale hands. Movement: s/n; 5018. Round caliber 16 ligne, 18 jewels, all adjustments. The movement obtained the Poincon de Geneve quality seals on November 23, 1927. Provenance: 1927 - Niton, Geneve 1925 - Mersmann, Interlaken 2006 - Antiquorum, Geneve Antiquorum, 23 Apr 2006, est HKD 30,000 - 40,000 sold HKD 40,120 "Platinum & Diamonds. Niton, Genève, No. 5018, case No. 10075. Made circa 1925 (must be 1927). Very fine and elegant, thin, platinum, enamel and diamond-set keyless dress pocket watch with an 18K white gold long chain. C. Three-body, brushed and polished, the band and bow outlined with black enamel, the bezel set with 79 round diamonds. D. Brushed silver with applied rose-cut diamond-set radial Roman numerals, outer applied white gold minute markers. Rose-cut diamond-set Cathédrale hands. M. 16 ligne, rhodium plated, fausses-côtes decoration, 18 jewels, stamped twice with the Seal of Geneva Quality Mark, straight line lever escapement, cut bimetallic compensation balance with all adjustments, blued steel Breguet balance spring, index regulator. Dial signed for Mersmann (Interlaken), movement signed Niton. Diam. 43 mm.