Rolex Daytona Ref. 116515LN-0061

CASE

• ​​Design​​: Oyster, 40mm, Everose Gold
• ​​Structure​​: Monobloc middle case, screw-down case back and winding crown
• ​​Diameter​​: 40mm
• ​​Material​​: 18ct Everose Gold
• ​​Bezel​​: Integrated black Cerachrom ceramic tachymeter scale insert
• ​​Winding Crown​​: Screw-down, Triplock triple waterproofing system
• ​​Crystal​​: Scratch-resistant sapphire
• ​​Water Resistance​​: 100 meters / 330 feet

MOVEMENT

• ​​Caliber​​: Rolex Caliber 4130, self-winding mechanical chronograph
• ​​Precision​​: Certified to ±2 seconds per day (after casing)
• ​​Features​​:
  • Central hour, minute, and seconds hands
  • Small seconds hand at 6 o’clock
  • Chronograph accurate to 1/8th second (central chronograph hand)
  • 30-minute counter at 3 o’clock, 12-hour counter at 9 o’clock
  • Hacking seconds (time-setting halt mechanism)
• ​​Oscillator​​: Paramagnetic blue Parachrom hairspring
• ​​Winding​​: Perpetual rotor (bidirectional self-winding)
• ​​Power Reserve​​: Approx. 72 hours

BRACELET

• ​​Type​​: Oysterflex
• ​​Material​​: High-performance elastomer over flexible metal blades
• ​​Clasp​​: Folding Oysterlock safety clasp with 5mm Easylink extension

DIAL

• ​​Color​​: Sundust, gem-set
• ​​Gem Setting​​:
  • 8 trapezoid-cut diamond hour markers
  • Diamonds at 3, 6, and 9 o’clock positions
• ​​Details​​: Snailed subsidiary seconds dials

CERTIFICATIONS

• COSC (Swiss Official Chronometer Testing Institute)
• Rolex Superlative Chronometer Certification (post-casing)

Key Terminology Notes:

• ​​Everose Gold​​: Rolex’s proprietary rose gold alloy (18ct).
• ​​Cerachrom​​: Rolex’s ceramic material for bezels.
• ​​Oysterflex​​: Hybrid bracelet with elastomer coating and metal core.
• ​​Parachrom Hairspring​​: Rolex’s antimagnetic, shock-resistant alloy.
• ​​Triplock​​: Triple-sealed waterproof crown system.