Ladies Zenith Star Open Watch, stainless steel case (37.5mm diameter), fabric strap with stainless steel triple-folding buckle, silver/red (#01-C538), black (#21-C545), white (#31-C546), blue (#51-C548), violet (#71-C547), or orange (#74-C549) dial with a heart-shaped opening showing the escapement mechanism at 10 o'clock, silver hands, and applied silver 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.