Rolex Cosmograph Daytona Ref# 126508‑0003

🔹 Overview
The Rolex Cosmograph Daytona 40 mm Ref. 126508‑0003 is a luxurious chronograph crafted entirely in 18 ct yellow gold. This opulent model features a bright black dial set with diamonds, golden accents, and a tachymetric bezel, making it both a statement of prestige and a high-performance timing instrument for motorsport enthusiasts.

💎 Key Specifications
Origin: Switzerland
Gender: Men’s / Unisex
Case Diameter: 40 mm (Oyster case in yellow gold)
Case Material: 18 ct yellow gold 
Bezel: Fixed, engraved tachymeter scale in 18 ct yellow gold
Dial: Bright black and golden dial set with diamonds; spray-coated chronograph counters and gold appliqué hour markers and hands with Chromalight luminescence
Hour Markers: Diamonds in gold settings; gold hands filled with Chromalight for optimal legibility 
Bracelet Type: Oyster bracelet in 18 ct yellow gold with three-piece solid links; folding Oysterlock safety clasp and Easylink 5 mm comfort extension link 
Glass: Scratch‑resistant sapphire crystal with no Cyclops lens (chronograph model does not feature date)
Water Resistance: 100 meters / 330 feet; Triplock triple waterproofness system

⏱️ Movement
Type: Perpetual, mechanical chronograph, self-winding 
Caliber: Rolex Caliber 4131, in-house manufacture known for reliability and performance 
Power Reserve: Approximately 72 hours 
Hairspring & Shock Protection: Paramagnetic blue Parachrom hairspring and Rolex‑patented Paraflex shock absorbers for enhanced precision and durability

Functions:

• Centre hours and minutes hands, small seconds at 6 o’clock

• Chronograph: centre sweep‑second hand, 30‑minute counter at 3 o’clock, 12‑hour counter at 9 o’clock

• Stop‑seconds function for precise time setting

✅ Highlight Summary
The Rolex Cosmograph Daytona Ref. 126508‑0003 is a masterclass in combining high-luxury aesthetics with motorsport-ready functionality. Its 18 ct yellow gold case and bracelet showcase Rolex’s premier craftsmanship, while the diamond‑set black and golden dial offers a bold yet refined visual statement. The fixed tachymetric bezel enables speed calculations up to 400 units/hour — a tribute to Daytona’s racing heritage. Powered by the chronometer-certified Calibre 4131 with ~72 hours of autonomy, this model delivers precision, robustness, and longevity. With its comfortable Oyster bracelet featuring Oysterlock and Easylink, it’s perfect for collectors seeking maximum performance and unmatched elegance.