Omega Constellation 123.10.31.20.05.001 Automatic machinery, precision steel, 31mm (discontinued)

Description

Basic Information ID: 123.10.31.20.05.001 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: 31mm Case Thickness: Not Available Dial Color: Silver Dial Shape: Round Strap Color: Silver Clasp Type: Folding Clasp Case Back: Transparent Weight: Not Available Water Resistance: 100 meters Hour Marker Type: Bat Hour Markers Clasp Spacing: Not Available Lug Spacing: 19mm Materials: Case Material: Stainless Steel Dial Material: Mother-of-Pearl Bezel Material: Stainless Steel Crystal Material: Domed Double-sided Anti-reflective Sapphire Crystal Crown Material: Stainless Steel Strap Material: Stainless Steel Clasp Material: Stainless Steel Functions: Date Display