Cosmograph Daytona
REFERENCE
116519LN
MODEL CASE
Oyster, 40 mm, white gold
BEZEL
Black monobloc Cerachrom bezel in ceramic with engraved tachymetric scale
WATER-RESISTANCE
Waterproof to 100 metres / 330 feet
MOVEMENT
Perpetual, mechanical chronograph, self-winding
CALIBRE
4130, Manufacture Rolex
POWER RESERVE
Approximately 72 hours
BRACELET
Oysterflex
DIAL
Black set with diamonds
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)


BLACK DIAL
This model’s Black set with diamonds dial with snailed counters features 18 ct gold applique hour markers and hands in Chromalight, a highly-legible luminescent material. The central sweep seconds hand allows an accurate reading of 1/8 second, while the two counters on the dial display the lapsed time in hours and minutes. Drivers can accurately map out their track times and tactics without fail.
THE TACHYMETRIC SCALE
A key part of the model’s identity is the bezel engraved with a tachymetric scale for measuring average speeds of up to 400 miles or kilometres per hour. Blending of high technology with sleek aesthetics, the black bezel is reminiscent of the 1965 model that was fitted with a black Plexiglas bezel insert.
The monobloc Cerachrom bezel in high-tech ceramic offers a number of advantages: it is corrosion resistant, virtually scratchproof and the colour is unaffected by UV rays. This extremely durable bezel also offers an exceptionally legible tachymetric scale, thanks to the deposition of a thin layer of platinum in the numerals and graduation via a PVD (Physical Vapour Deposition) process. The monobloc Cerachrom bezel is made in a single piece and holds the crystal firmly in place on the middle case, ensuring waterproofness.


18 CT WHITE GOLD
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white. They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.

REFERENCE
116519LN
MODEL CASE
Oyster, 40 mm, white gold
BEZEL
Black monobloc Cerachrom bezel in ceramic with engraved tachymetric scale
WATER-RESISTANCE
Waterproof to 100 metres / 330 feet
MOVEMENT
Perpetual, mechanical chronograph, self-winding
CALIBRE
4130, Manufacture Rolex
POWER RESERVE
Approximately 72 hours
BRACELET
Oysterflex
DIAL
Black set with diamonds
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

BLACK DIAL
This model’s Black set with diamonds dial with snailed counters features 18 ct gold applique hour markers and hands in Chromalight, a highly-legible luminescent material. The central sweep seconds hand allows an accurate reading of 1/8 second, while the two counters on the dial display the lapsed time in hours and minutes. Drivers can accurately map out their track times and tactics without fail.

THE TACHYMETRIC SCALE
A key part of the model’s identity is the bezel engraved with a tachymetric scale for measuring average speeds of up to 400 miles or kilometres per hour. Blending of high technology with sleek aesthetics, the black bezel is reminiscent of the 1965 model that was fitted with a black Plexiglas bezel insert.
The monobloc Cerachrom bezel in high-tech ceramic offers a number of advantages: it is corrosion resistant, virtually scratchproof and the colour is unaffected by UV rays. This extremely durable bezel also offers an exceptionally legible tachymetric scale, thanks to the deposition of a thin layer of platinum in the numerals and graduation via a PVD (Physical Vapour Deposition) process. The monobloc Cerachrom bezel is made in a single piece and holds the crystal firmly in place on the middle case, ensuring waterproofness.

18 CT WHITE GOLD
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white. They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.