Cosmograph Daytona 116519LN-0027 40mm

A note: The small dial in the watch is only for decoration.

ref. 116519LN
Model Cases
Oyster, 40 mm, white gold
Model Cases
Oyster, 40 mm, white gold
Oyster Architecture
Monobloc middle case, screw back case, crown
diameter
40 mm
material
18 ct white gold
Bezel
Black ceramic monobloc Cerachrom bezel and tachymeter
Crown
Screw type, triplock (triple sealed structure)
crystal
Anti-scratch sapphire
Waterproof
100m / 330ft Water Resistance
Movement
Perpetual, mechanical chronograph, automatic
Calibre
4130, manufactured entirely in-house by Rolex
precision
Day difference – 2~+2 seconds (after casing)
function
Hour, minute, and second hands in the center, with small seconds (at 6 o’clock). Chronograph and totalizer measuring up to 1/8 second (30 minutes at 3 o’clock and 12 hours at 9 o’clock). Accurate time setting with second hand stop function
Transducer
Paramagnetic Blue Parachrom Hairspring
Winding
Bidirectional automatic winding with Perpetual rotor
Power reserve
Approx. 72 hours
bracelet
Oysterflex
Bracelet Material
Flexible metal blades, high-performance elastomeric coatings
clasp
Oyster lock with safety catch, easy link (approx. 5 mm extension link)
dial
Steel & Black
dial
Steel & Black
detail
Chromalight display (long-lasting luminescence with blue light emission)
authorization
High precision chronometer (COSC, Rolex certified after casing)