Dial

• Dial : White
• Details : Highly legible Chromalight display with long-lasting blue luminescence

Case

• Case : Oyster, 40 mm, Oystersteel
• Oyster architecture : Monobloc middle case, screw-down case back and winding crown
• Diameter : 40 mm
• Material : Oystersteel
• Bezel : Black monobloc Cerachrom bezel in ceramic with moulded tachymetric scale
• Winding crown : Screw-down, Triplock triple waterproofness system
• Crystal : Scratch-resistant sapphire
• Water resistance : Waterproof to 100 metres / 330 feet

Movement

• Movement : Perpetual, mechanical chronograph, self-winding
• Calibre : 4131, manufacture Rolex
• Precision : -2/ 2 sec/day, after casing
• Certification : Superlative Chronometer (COSC Rolex certification after casing)
• Functions : Centre hour and minute hands, small seconds hand at 6 o'clock. Chronograph via centre seconds hand, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for exact time setting
• Oscillator : Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
• Winding : Bidirectional self-winding via Perpetual rotor
• Power reserve : Approximately 72 hours

Bracelet

• Bracelet : Oyster, three-piece solid links
• Material : Oystersteel
• Clasp : Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link