Ulysse Nardin 320-00-3 El Toro GMT +/- Perpetual Calendar Mens Watch. Polished 18kt white gold case. Black ceramic bezel with white gold filled engraved 24 hour marking. Bold matte finished skeleton hour & minute hands with luminous tips. Perpetual Calendar complication. Small Seconds sub-dial at the 9 o'clock position. Black rubber strap with push-button ceramic & titanium butterfly style deployment buckle. UN Caliber UN-32, beats at 28,800 vph, contains 34 Jewels & has an approximate power reserve of 48 hours. Item variation: 320003.