Rolex Cosmograph Daytona Oyster, 40 mm, Oystersteel Ref: m126500ln-0002

The Oyster Perpetual Cosmograph Daytona in Oystersteel showcases a striking black dial and an Oyster bracelet. It features a sleek black Cerachrom bezel with a tachymetric scale for precision timing.

Dial

• Color: Black
• Details: Highly legible Chromalight display with long-lasting blue luminescence

Case

• Type: Oyster
• 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

• Type: 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
  • 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

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