Omega brand

Zodiac Series

Automatic mechanical movement type

8520 movement model

27mm dial

Stainless steel case material

Basic Information ID: 123.15.27.20.55.002 Brand: Omega Series: Constellation Movement Type: Automatic Mechanical Gender: Ladies’ Movement: Movement Model: 8520 Movement Type: Automatic Mechanical Manufacturer: Omega Movement Diameter: 20mm Movement Thickness: 5.3mm Balance Wheel: Free-sprung Balance Spring Frequency: 25,200 vibrations per hour Hair Spring: Si 14 silicon Hair Spring Jewels: 28 Power Reserve: 50 hours Technical Certifications: Swiss Official Chronometer Testing Institute (COSC) Appearance: Case Diameter: 27mm Case Thickness: 12.3mm Dial Color: White Dial Shape: Round Strap Color: Silver Clasp Type: Butterfly Clasp Case Back: Transparent Weight: 92 grams Water Resistance: 100 meters Hour Marker Type: Diamond-set Hour Markers Clasp Spacing: Not available Lug Spacing: 18 Millimeter-long case material: Stainless steel; Dial material: Mother-of-pearl with diamonds; Bezel material: Stainless steel with diamonds; Crystal material: Domed double-sided anti-reflective, scratch-resistant sapphire crystal; Crown material: Stainless steel; Strap material: Stainless steel; Buckle material: Stainless steel; Functions: Date display.