Rolex Cosmograph Daytona Oyster, 40 mm, Oystersteel Ref: m126500ln-0001

Dial

• Dial?:?White
• Details?:?Highly legible Chromalight display with long-lasting blue luminescence

Case

• Case?:?Oyster, 40 mm, Oystersteel
• Oyster architecture?:?Monobloc middle case, screw-down case back and winding crown
• Diameter?:?40 mm
• Material?:?Oystersteel
• Bezel?:?Black monobloc Cerachrom bezel in ceramic with moulded tachymetric scale
• Winding crown?:?Screw-down, Triplock triple waterproofness system
• Crystal?:?Scratch-resistant sapphire
• Water resistance?:?Waterproof to 100 metres / 330 feet

Movement

• Movement?:?Perpetual, mechanical chronograph, self-winding
• Calibre?:?4131, manufacture Rolex
• Precision?:?-2/+2 sec/day, after casing
• Certification?:?Superlative Chronometer (COSC + Rolex certification after casing)
• Functions?:?Centre hour and minute hands, small seconds hand at 6 o'clock. Chronograph via centre seconds hand, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for exact time setting
• Oscillator?:?Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
• Winding?:?Bidirectional self-winding via Perpetual rotor
• Power reserve?:?Approximately 72 hours

Bracelet

• Bracelet?:?Oyster, three-piece solid links
• Material?:?Oystersteel
• Clasp?:?Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link