Rolex Datejust 178344-63160 Black Dial Automatic machinery, stainless steel, 31mm

Description

Basic Information: Number 178344-63160 Black Dial; Brand: Rolex; Series: Datejust; Movement Type: Automatic; Gender: Women’s; Movement Model: Cal. 2235; Movement Type: Automatic; Manufacturer: Rolex; Movement Diameter: 20mm; Movement Thickness: 5.95mm; Frequency: 28,800 vibrations per hour; Hairspring: Parachrom; Shock-resistant: Paraflex. Jewel count: 31; Power reserve: 48 hours; Technical certification: Superlative Chronometer; Appearance: Case diameter: 31 mm; Case thickness: Not available; Dial color: Black; Dial shape: Round; Strap color: Silver; Clasp type: Folding clasp, concealed folding crown buckle; Case back: Screw-down case back; Weight: Not available; Water resistance: 100 meters; Hour markers: Roman numerals; Clasp spacing: Not available; Lug spacing: Not available; Materials: Case material: Stainless steel; Dial material: Not available; Bezel material: 18k white gold, domed, diamond-set bezel; Crystal material: Scratch-resistant sapphire crystal, anti-reflective; Cyclops lens with 2.5x magnification (date window); Crown material: Screw-down Twinlock double waterproof system; Strap material: Stainless steel, Jubilee, five-link; Clasp material: Not available; Functions: Date display