Our remarks

Rolex Daytona Cosmograph - Reference 116520 - Stainless Steel - Box & Papers 2003 - In-House Service 09/2026 - Excellent

The Rolex Daytona Cosmograph Reference 116520 from 2003 embodies a defining chapter in modern horology as the pioneer of the brand's first fully in-house automatic chronograph movement, the Caliber 4130. This engineering breakthrough replaced decades of outsourced movements, introducing a vertical clutch system and a generous seventy-two-hour power reserve for seamless precision.

The Reference 116520 holds a special place in Daytona history as the first stainless steel Daytona powered by Rolex’s in-house automatic chronograph movement, the renowned Caliber 4130. This milestone reference is celebrated for its technical excellence, robustness, and enduring design.

The 40 mm Oyster case showcases Rolex’s signature combination of polished and brushed surfaces and is complemented by the iconic engraved tachymeter bezel. The white dial, with its silver surrounded subdials, luminous hour markers, and classic stick hands, offers exceptional legibility and timeless Daytona aesthetics.

Powering the watch is the legendary Rolex Caliber 4130, entirely developed and manufactured in-house. Featuring a column wheel and vertical clutch, the movement is widely regarded as one of the finest automatic chronograph calibers ever produced, delivering outstanding reliability and precision.

Fitted with the original stainless steel Oyster bracelet and Oysterlock clasp, this Daytona wears with both comfort and authority. Offered as a set with original box and papers this example represents a true collector-grade opportunity.

This watch is accompanied by:

- Original box and outer box

- Official warranty papers, 2003

- Green Rolex leather card holder

- Rolex Oyster booklet

- Rolex service manual

- Rolex Daytona booklet

- Rolex calendar card 

- complete In-House Service 09/2026

“One of the important modern Daytona references, the 116520 combines iconic design with Rolex’s definitive chronograph movement, offered here in untouched, investment-grade condition.”