Cosmograph Daytona Golden, black counter rings, 40 mm, yellow gold, Ref 126508 0005 Oyster

Case:
40 mm Oyster case crafted in 18 ct yellow gold, featuring a monobloc middle case with a screw-down case back and Triplock triple waterproofness winding crown. Water-resistant to 100 metres / 330 feet.

Bezel:
Fixed bezel in 18 ct yellow gold, engraved with a tachymetric scale.

Crystal:
Scratch-resistant sapphire crystal.

Movement:
Rolex Calibre 4131, a self-winding mechanical chronograph movement offering exceptional precision of −2/+2 seconds per day.

Functions:
Centre hour and minute hands; small seconds at 6 o’clock. Chronograph function with centre seconds hand, 30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock. Stop-seconds function for precise time setting.

Oscillator:
Paramagnetic blue Parachrom hairspring with high-performance Paraflex shock absorbers.

Winding:
Bidirectional self-winding via Perpetual rotor.

Power Reserve:
Approximately 72 hours.

Bracelet:
Oyster bracelet with three-piece solid links in 18 ct yellow gold.

Clasp:
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link.

Dial:
Golden dial with black counter rings, featuring a highly legible Chromalight display with long-lasting blue luminescence.

Certification:
Superlative Chronometer — COSC certified and fully tested by Rolex after casing.