8156-111-2/91 Ulysse Nardin This Men’s Watch has 40 mm 18ct rose gold case. Eggshell dial. Leather strap with simple buckle. Date. COSC Certificate. Self-winding. Caliber UN-815. Water-resistant to 50 m. /165 ft. Limited Edition of 88 pieces. All pre-owned watches are not returnable. One year warranty for all watches. 8156-111-2/91 Ulysse Nardin 18K Rose Gold Watch.