Case is 40mm diameter, 18k yellow gold, snap-on sapphire crystal display case back. Dial is silvered guilloché. Movement is manual winding, cal. 560.1, 24 jewels, with tourbillon, power reserve, and retrograde 24-hour indication, numbered 2’747. With: 18k yellow gold Breguet folding clasp, Breguet presentation box. Remark: Case number 1’914 S, circa 2000. Estimate CHF 19,000 – CHF 28,000. Sold for CHF 25,599 at Sothebys Auctions May 10 2026 Geneva