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: 19?? - Niton, Geneve 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."