Description
Since its introduction in 2016, the reference 126503 marked a pivotal evolution in Rolex’s Daytona chronograph lineage, introducing the revolutionary Caliber 4130 movement within the striking Yellow Rolesor construction. This 40mm iteration seamlessly marries 904L stainless steel with 18-karat yellow gold, creating the distinctive two-tone aesthetic that defines the modern Cosmograph Daytona’s most versatile expression. The golden index dial provides exceptional legibility while maintaining the racing-inspired functionality that has made this reference a cornerstone of contemporary Rolex sport watch collecting. Each element, from the tachymeter-engraved bezel to the robust Oyster bracelet architecture, reflects decades of chronograph refinement distilled into this unworn example.
Key Features & Specifications
Reference 126503 Movement — Houses the manufacture Caliber 4130 automatic chronograph with 72-hour power reserve and paramagnetic blue Parachrom hairspring for enhanced precision and shock resistance
Yellow Rolesor Construction — 40mm case combines 904L stainless steel with solid 18-karat yellow gold crown, pushers, and center links, creating Rolex’s signature two-tone durability standard
Golden Index Dial Configuration — Features applied yellow gold hour markers with Chromalight luminescence and matching hands, complemented by contrasting black sub-dials at 3, 6, and 9 o’clock positions
Sapphire Crystal Protection — Anti-reflective sapphire crystal with double anti-reflective coating ensures optimal dial visibility while providing scratch resistance to 9 on the Mohs scale
Oyster Bracelet Integration — Three-link solid bracelet construction with Easylink 5mm comfort extension system and Oysterclasp folding safety clasp with twin-lock double waterproofness system
Tachymeter Functionality — Fixed yellow gold bezel engraved with tachymeter scale calibrated to 400 units per hour for measuring average speeds over known distances
Unworn Condition Status — Complete factory-fresh presentation with all protective materials, representing optimal collectibility and long-term preservation value
About This Timepiece
Bracelet Sizing — Complimentary bracelet sizing included with every purchase. Contact us with your wrist measurement and we’ll have it ready before shipping.
Authenticity Guarantee — Every watch is thoroughly inspected and authenticated by our team of certified horologists. 100% authentic, guaranteed.
Warranty — New model watches include a 1-year mechanical warranty covering manufacturing defects. All watches include our confidence guarantee.
Shipping — Free insured overnight FedEx shipping on all orders. Fully insured, signature required, discreet packaging.
Contact Us
Questions about this timepiece? Our specialists are available to help.
Phone/Text: (310) 363-0481
Email: sales@jestikcollection.com
Jestik Collection is an independent luxury watch dealer and is not affiliated with Rolex S.A., Rolex USA, Patek Philippe, Audemars Piguet, Cartier, Omega, Tudor, or any brands listed.




















