Case

Case Size: 41 mm diameter

Case Material: Oystersteel (904L stainless steel)

Case Thickness: ~12.3 mm

Lug Width: 21 mm

Water Resistance: 300 meters / 1,000 feet

Crown: Screw-down Triplock winding crown with crown guards

Caseback: Solid, screw-down Oyster caseback

Bezel

Type: Unidirectional rotatable 60-minute graduated dive bezel

Material: Black Cerachrom ceramic insert

Markings: Platinum-coated numerals and graduations

Bezel Function: Diving elapsed-time measurement

Crystal

Scratch-resistant sapphire crystal

No Cyclops lens (no date display)

Movement

Calibre: Rolex Calibre 3230

Type: Self-winding mechanical movement with Perpetual rotor

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

Jewels: 31

Power Reserve: Approximately 70 hours

Functions

Hours

Minutes

Seconds

Stop-seconds for precise time setting

Oscillator / Balance

Hairspring: Paramagnetic blue Parachrom hairspring

Escapement: Chronergy escapement

Balance Wheel: Variable inertia balance with Microstella regulation

Shock Protection: Paraflex shock absorbers

Dial

Color: Black lacquer dial

Hour Markers: Applied 18 ct white gold hour markers with Chromalight luminescence (blue glow)

Hands

Mercedes hour hand

Minute hand

Luminous central seconds hand

Bracelet

Bracelet Type: Oyster bracelet (three-link)

Material: Oystersteel

Clasp: Oysterlock folding safety clasp

Extension System: Rolex Glidelock diving extension system

Certification

Superlative Chronometer (COSC + Rolex certification after casing)

Accuracy: −2 / +2 seconds per day

Rolex International Warranty: 5 years