This pre-owned Ulysse Nardin Executive Skeleton Tourbillon 1713-139 watch is in very good condition. During our quality control check, any necessary adjustments are made to ensure the watch is functioning as intended. The watch is Crown & Caliber Certified Authentic and comes backed by our 1-year warranty. Pre-Owned Watch. Own this beautiful Ulysse Nardin Executive Skeleton Tourbillon Watch and enjoy this beautiful timepiece with its manual movement. Watch has a Titanium casing with a Skeleton Dial and Black Leather Strap. Watch does come with box and papers. SKU MW9682 (MYBUSNS-BP)