This model features a turquoise blue and black dial with snailed counters, 18 ct gold applique hour markers and hands with a Chromalight display, a highly-legible luminescent material. A key part of the model’s identity is the bezel moulded with a tachymetric scale for measuring average speeds of up to 400 miles or kilometres per hour. Blending high technology with sleek aesthetics, the black bezel is reminiscent of the 1965 model that was fitted with a black Plexiglas bezel insert.

Gender	Man
Brand	Rolex
Model No.	126518LN
Movement	Perpetual, mechanical chronograph, self-winding
Calibre	4131, Manufacture Rolex
Power reserve	Approximately 72 hours
Precision	-2/+2 sec/day, after casing
Case diameter	40 mm
Dial	Turquoise blue and black-Highly legible Chromalight display with long-lasting blue luminescence
Bezel	Black monobloc Cerachrom bezel in ceramic with moulded tachymetric scale
Glass Material	Scratch-resistant sapphire
Case Material	Oyster, 40 mm, yellow gold
Water Resistance	Waterproof to 100 metres / 330 feet
Bracelet material	Oysterflex
Clasp	Folding Oysterlock safety clasp with Rolex Glidelock extension system
Winding Crown	Screw-down, Triplock triple waterproofness system
Winding	Bidirectional self-winding via Perpetual rotor
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
Oyster Architecture	Monobloc middle case, screw-down case back and winding crown
Condition	Brand New In Box (BNIB)
What's Inside Box	1x Rolex Daytona 40 - 126518 Cosmograph Turquoise Blue Oysterflex, Yellow gold 1x Official Rolex Certificate Card 1x Rolex Manual Book 1x Rolex Hang Tag 1x Watch Box