Ladies Zenith Star Open Watch, 18kt rose gold case (37.5mm diameter), fabric strap with 18kt rose gold triple-folding buckle, silver guilloche dial with a heart-shaped opening showing the escapement mechanism at 10 o'clock, rose gold hands, and applied rose gold Arabic numerals, power reserve indicator at 6 o'clock, El Primero #4021 self-winding mechanical movement with chronograph functions, scratch-resistant sapphire crystal, water-resistant to 30 meters.