Rolex Cosmograph Daytona 40mm, 18k White Gold, Ref# 126509-0002

Basic information

• No.: m126509-0002
• Brand: Rolex
• Series: Cosmograph Daytona
• Movement type: automatic
• Gender: Men

Movement

• Movement: Model 4131
• Movement type: automatic
• Manufacturer: Rolex
• Balance: Extra-large inertia fine-tuning balance
• Frequency: 28,800 oscillations per hour
• Groom: Paramagnetic blue Parachrom hairspring
• Shock absorber: High-performance Paraflex shock absorber
• Number of jewels: 47
• Power reserve: 72 hours
• Technical certification: Superlative Observatory certification

Appearance

• Diameter: 40 mm
• Dial color : Bright black
• Dial shape: Round
• Strap color: Silver
• Clasp type: Folding Oyster safety clasp with 5mm easy-adjust link extension system
• Case: Screw-in caseback
• Waterproof performance: 100 meters
• Hour marker type: Diamond-set hour markers

Material

• Case material: 18k white gold
• Dial material: 18K gold, diamond-set, easy-to-read Chromalight long-lasting blue luminous display
• Bezel material: 18K white gold fixed outer ring with tachymeter scale
• Mirror material: Scratch-resistant blue crystal
• Crown material: Screw-in, triple buckle lock triple waterproof system
• Strap material: 18k white gold, Oyster, three-grid solid link

Function

• Chronograph