ROLEX COSMOGRAPH DAYTONA REF. 116515LN EVEROSE GOLD CHOCOLATE DIAL OYSTERFLEX SELF-WINDING CHRONOGRAPH CAL. 4130

Reference
116515LN

MODEL CASE
Oyster, 40 mm, Everose gold
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
40 mm
MATERIAL
18 ct Everose gold
BEZEL
Black monobloc Cerachrom bezel in ceramic with engraved tachymetric scale
WINDING CROWN
Screw-down, Triplock triple waterproofness system
CRYSTAL
Scratch-resistant sapphire
WATER-RESISTANCE
Waterproof to 100 metres / 330 feet

MOVEMENT
Perpetual, mechanical chronograph, self-winding
CALIBRE
4130, Manufacture Rolex
PRECISION
-2/+2 sec/day, after casing
FUNCTIONS
Centre hour, minute and seconds hands, small seconds hand at 6 o'clock. Chronograph (centre hand) accurate to within 1/8 of a second, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for precise time setting
OSCILLATOR
Paramagnetic blue Parachrom hairspring
WINDING
Bidirectional self-winding via Perpetual rotor
POWER RESERVE
Approximately 72 hours

BRACELET
Oysterflex
BRACELET MATERIAL
Flexible metal blades overmoulded with high-performance elastomer
CLASP
Folding Oysterlock safety clasp

DIAL
Chocolate

DETAILS
Dial with snailed small counters

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)