Case

Case Size: 40 mm diameter

Case Material: Oystersteel (904L stainless steel)

Case Thickness: ~12.5 mm

Water Resistance: 300 meters / 1,000 feet

Crown: Screw-down Triplock winding crown with crown guards

Caseback: Solid, screw-down steel

Bezel

Type: Unidirectional rotatable 60-minute bezel (for dive timing)

Material: Green Cerachrom ceramic insert

Markings: Engraved numerals and graduations with platinum PVD coating

Bezel Edge: Knurled for improved grip with gloves

Crystal

Scratch-resistant sapphire

Cyclops magnifying lens over the date at 3 o’clock

Movement

Calibre: Rolex Calibre 3135

Type: Self-winding mechanical movement with Perpetual rotor

Frequency: 28,800 vibrations per hour (4 Hz)

Jewels: 31

Power Reserve: Approximately 48 hours

Functions

Hours, minutes, seconds

Instantaneous date at 3 o’clock

Rapid date correction

Stop-seconds for precise time setting

Oscillator / Balance

Hairspring: Paramagnetic blue Parachrom hairspring

Balance Wheel: Variable inertia balance with Microstella regulation

Shock Protection: Paraflex shock absorbers

Dial

Color: Sunburst green dial

Hour Markers: Applied 18 ct white gold markers with Chromalight (long-lasting blue luminescence)

Hands:

Mercedes hour hand and minute hand in white gold

Luminous central seconds hand

Bracelet

Type: Oyster bracelet (three-link)

Material: Oystersteel

Clasp: Oysterlock folding safety clasp

Extension System: Rolex Glidelock diving extension system (tool-free micro-adjustment up to ~20 mm)

Certification

Certification: Superlative Chronometer (COSC + Rolex certification after casing)

Accuracy: −2 / +2 seconds per day

Rolex International Warranty: 5 years (for watches sold after 2015)