Case:
Diameter: 40 mm.
Stainless steel.
Black monobloc cerachrom bezel in ceramic with engraved tachymetric scale.
Monobloc middle case.
Screw-down case back and winding crown.
Triplock triple waterproofness system.
Waterproof to 100 metres / 330 feet.

Dial:
White.
Scratch-resistant sapphire.
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.

Movement:
Perpetual, mechanical chronograph, self-winding.
Calibre 4130, manufacture Rolex.
Precision of -2/+2 sec/day, after casing.
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.
Paramagnetic blue parachrom hairspring.
Bidirectional self-winding via perpetual rotor.
Power reserve of 72 hours.
44 jewels.
Frequency: 28.800 vph.

Bracelet:
Stainless steel.
Oyster, flat three-piece links.
Folding oysterlock safety clasp with easylink 5 mm comfort extension link.