18k yellow and white gold Chronometer no. 5040

Case: 18k bicolor, yellow and white gold Dial: silvered dial, signed Wegelin Fils, Geneve, Breguet numbers Movement: s/n; 5040, caliber 17''', Wegelin Fils, Geneve, 2 x Poincon de Geneve quality seal, obtained on January 1, 1928 and was part of a batch of 7 from the same date (5037-5042 and 5027). The ebauche is by Fils de Louis Elisee Piguet, and finished in all probability by Niton. Provenance: 1928 - Niton, Geneve (in all probability, still validating) 1928 - Wegelin Fils, Geneve 2018 - Osenat, Fontainebleau Osenat, COLLECTOR'S WATCHES, Saturday, July 07, 2018 14:30, Fontainebleau, 9-11, rue Royale 77300 Fontainebleau, Lot 61, WEGELIN FILS GENEVA Pocket watch in gold. Pocket watch in yellow and white gold with a mechanical movement. Round case, gadroon bezel, smooth gold back yellow, fluted crown in yellow gold, oval bail in white gold, clip-on caseback. Silver dial, applied Bréguet numerals, hands Bréguet in white gold, small seconds with Railway timer at 6:00 a.m. Mechanical hand-wound movement. Hallmark of Geneva and numbered "5040 Swiss" Numbered box: 2455 Gross Weight: 55.3 g Diameter: 44 mm A white and yellow gold pocket watch by WEGELIN GENEVA YARN https://www.osenat.com/lot/92518/9113714?