Platinum, Diamond & Emerald Wrist Chronometer no. 5355

Case: Platinum, Diamond and Emerald Lapel-Watch The flexible lapel-watch of geometric design, set with baguette, triangle, marquise-shaped and old European-cut diamonds weighing approximately 5.00 carats, accented by cabochon emeralds Dial: Movement: L-shape baguette, nickel, bi-metallic balance with blued steel balance spring with Breguet overcoil with polished steel kidney piece, signed "Niton, Geneve, Eighteen 18 Jewels, All Adjustments, 5355, Swiss", stamped with the Geneva seal. Provenance: 1928 - Niton, Geneve 2015 - Sothebys 2015 - Sotheby’s, 24 Sep 2015, est $5-7,000, sold $20,000 "Platinum, Diamond and Emerald Lapel-Watch The flexible lapel-watch of geometric design, set with baguette, triangle, marquise-shaped and old European-cut diamonds weighing approximately 5.00 carats, accented by cabochon emeralds, the movement signed Niton Geneve, numbered 5355; circa 1920." platinum, diamond, emerald The flexible lapel-watch of geometric design, set with baguette, triangle, marquise-shaped and old European-cut diamonds weighing approximately 5.00 carats, accented by cabochon emeralds, the movement signed Niton Geneve, numbered 5355; circa 1920. Condition In good condition. The diamonds are approximately F-H color and VS-SI clarity. The cabochon emeralds are a medium green color and are heavily included, one of the cabochons is significantly chipped at the apex. Nice movement when worn. The mechanical movement is extremely rare and well made and is currently running. The movement is signed Niton Geneve. V baguette pin watch, 18 jewels, Geneva seal on main plate. High grade V movement with all adjustments designed in 5 bridges. Movement number 5255. Recently cleaned, oiled, and adjusted. The watchmaker notes that this movement is very sensitive to shock and magnetic field and therefore would not be appropriate for everyday wear. To wind, carefully rotate the crown 10 finger rotations, the watch should run approximately 24 hours. Please see Important Notice Regarding the Condition of Watches on page 289 of the catalogue. In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption. Notice; Because there are two timepieces with the same serial number (5355) one of the two is in all probability movement serial number 5255 which obtained the Poincon de Geneve quality seal on June 23, 1928 and was part of a batch of 6 (5255-5260). But, it is for sure this unique piece is authentic and original by Niton.