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Case: Dial: silvered dial, digital jump hour aperture with painted arrow and minute aperture with seconds subdial, signed C. Bucherer, Lucerne Movement: s/n; 88533, 17''', signed Niton, Geneva, Swiss, Nineteen 19 jewels, Eight 8 adj, 2 x Poincon de Geneve quality seals, obtained on June 4, 1930, and was one of a batch of one (piece-unique). Other Niton movements with Poincon de Geneve quality seals and a 5-digit movement serial number are; Movement serial number; 64950, obtained the Poincon de Geneve on August 31, 1928 Movement serial number; 80666, obtained the Poincon de Geneve on October 29, 1928 (Movement serial number; 88533, obtained the Poincon de Geneve on June 4, 1930) Movement serial number; 79582, obtained the Poincon de Geneve on February 25, 1932, all piece-uniques. According to above movement serial numbers which matches with the movement serial numbers used by E. Koehn who owned Manfacture HR Ekegren, these movements were, in all probability made by E. Koehn. Interesting to know is the fact that in the last years of Koehn's company existence, Koehn was located at the same address as Niton. Provenance: 1930 - Niton, Geneve 2013 - eBay Recased jump hour and min movement, with sec (same kaliber 17''' movement as E. Koehn used), C. Bucherer Lucerne on dial, Niton Geneva Swiss on movement