? Wrist Chronometer no. 4940

Case: 18k gold rectangular case (in all probability) Dial: Hr, min, sec (rectangular dial) Movement: s/n; 4940, caliber T10''' tonneau, also known as 9 x 11''', 18 jewels, all adjustments, obtained the Poincon de Geneve quality seal August 30, 1927 and is from a batch of 6 pieces 4936 - 4941) Provenance: 1927 - Niton, Geneve 2017 - Ebay, Privat, in Europe