Rolex Cosmograph Daytona m116509 40mm

Specifications

• Model: Rolex Cosmograph Daytona

• Reference: M116509

• Case Size: 40mm

• Case Material: 18k White Gold

• Bezel: Fixed 18k White Gold Tachymeter Bezel

• Dial: Varies by model (commonly Blue, Black, Red, or Silver with contrasting sub-dials)

• Crystal: Scratch-Resistant Sapphire

• Caseback: Solid, Screw-Down

• Movement: Rolex Caliber 4130 (Self-Winding Mechanical)

• Power Reserve: 72 Hours

• Functions: Hours, Minutes, Small Seconds, Chronograph, Tachymeter

• Bracelet: 18k White Gold Oyster Bracelet

• Clasp: Oysterlock Safety Clasp with Easylink 5mm Extension

• Water Resistance: 100 meters / 330 feet

• Certification: Superlative Chronometer (COSC + Rolex Internal Testing)

The Rolex Cosmograph Daytona M116509 in 18k white gold is a perfect fusion of bold design, precision chronograph engineering, and premium materials. This exclusive timepiece stands out not only for its sporty heritage and functionality but also for its luxurious solid gold construction, giving it an elevated presence compared to steel models.

Measuring 40mm in diameter, the Oyster case of the M116509 is entirely forged from Rolex’s proprietary 18k white gold, created in-house at the brand’s own foundry. The case exudes elegance and sophistication with its polished surfaces, screw-down pushers, and a Triplock screw-down crown, ensuring 100 meters of water resistance for robust everyday wear.

What makes this model truly special is its dynamic dial options — commonly found in sunburst blue, racing red, silver, or black — paired with contrasting sub-dials that enhance readability. Each dial layout is framed by a matching 18k white gold tachymetric bezel, engraved with a scale used for measuring average speeds up to 400 units per hour.

The dial includes three sub-dials at 3, 6, and 9 o’clock, delivering chronograph functionality: a 30-minute counter, 12-hour counter, and running seconds, powered by Rolex’s legendary automatic chronograph engine. The hands and applied hour markers are crafted from white gold and filled with Chromalight, Rolex’s proprietary long-lasting blue luminescent material, ensuring excellent visibility in low-light conditions.

Inside, the watch houses the tried-and-tested Rolex Caliber 4130 — an in-house automatic chronograph movement known for its durability, accuracy, and efficiency. The 4130 features a vertical clutch and column wheel mechanism, delivering smooth chronograph operation and eliminating hand jumps when activated. It’s equipped with a Parachrom hairspring for superior resistance to shocks and magnetic fields and delivers an impressive 72-hour power reserve.

Like all modern Rolex watches, the Daytona M116509 is a Superlative Chronometer, having passed both COSC and Rolex’s own internal certification, ensuring an accuracy of -2/+2 seconds per day.

The timepiece is fitted with a matching 18k white gold Oyster bracelet, offering a seamless integration with the case. The bracelet features solid links for strength and comfort, a polished center with satin-finished outer links, and is equipped with the Oysterlock folding safety clasp, preventing accidental opening. For added convenience, it includes the Easylink comfort extension system, allowing the wearer to quickly adjust the bracelet by 5mm without tools.

Whether you’re wearing it to a boardroom, a black-tie event, or simply appreciating it as part of a collection, the Rolex Daytona M116509 blends technical brilliance with understated luxury. As a full white gold chronograph from the most recognized high-performance watch line in the world, this Daytona is a timeless investment.