Shown: reference 126503-0001
Rolex

Cosmograph Daytona 126503 Reference 126503-0001

Cosmograph Daytona

Overview

A 40 mm yellow Rolesor (Oystersteel and yellow gold) case with a yellow bezel defines the Rolex Cosmograph Daytona 126503. Inside is the self-winding Rolex calibre 4131, which has a 72 hour power reserve. The watch is water resistant to 100 metres. The model has 4 references, which differ in dial colour (white and black).

Rolex introduced the Cosmograph in 1963 with reference 6239, a chronograph intended for racing drivers to measure elapsed time and calculate average speed. About the Rolex Cosmograph Daytona

Case diameter
40 mm
Movement
Calibre 4131
Water resistance
100 m
Power reserve
72 h

Specifications

Specifications from the1916company.com. Last checked . Sources

Case

Diameter
40 mm
Material
Yellow Rolesor (Oystersteel and yellow gold)
Crystal
Sapphire
Water resistance
100 m
Bezel
Fixed, with engraved tachymetric scale, in yellow gold

Dial

Colour
White, golden counter rings

Movement

Calibre
Rolex 4131
Type
Automatic
Power reserve
72 h

Bracelet or strap

Bracelet or strap
Oyster, three-piece solid links

Not yet recorded: thickness, lug width, lug-to-lug, case back, shape, indexes, hands, functions, years.

Sources

  • the1916company.com: case, water resistance, dial, movement, bracelet. View sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementRolex calibre 4131Specifications and every watch that uses it

Other versions of the Cosmograph Daytona 126503

The Rolex Cosmograph Daytona 126503 covers 4 references, with a 40 mm case. All use the Rolex calibre 4131.

Each version

  1. 126503-0001

    White dial · Yellow Rolesor (Oystersteel and yellow gold) · 40 mm

    View specifications
  2. 126503-0002

    Black dial · Yellow Rolesor (Oystersteel and yellow gold) · 40 mm

    View specifications
  3. 126503-0003

    Black dial · Yellow Rolesor (Oystersteel and yellow gold) · 40 mm

    View specifications
  4. 126503-0004

    Yellow Rolesor (Oystersteel and yellow gold) · 40 mm

    View specifications
Compare all 4 references in a table
References of the Rolex Cosmograph Daytona 126503, with dial, case material, size and production years
ReferenceDialCaseSizeProduced
126503-0001WhiteYellow Rolesor (Oystersteel and yellow gold)40 mm–
126503-0002BlackYellow Rolesor (Oystersteel and yellow gold)40 mm–
126503-0003BlackYellow Rolesor (Oystersteel and yellow gold)40 mm–
126503-0004–Yellow Rolesor (Oystersteel and yellow gold)40 mm–

Cosmograph Daytona 126503 questions

What size is the Rolex Cosmograph Daytona 126503?

The Rolex Cosmograph Daytona 126503 has a 40 mm case.

What movement does the Rolex Cosmograph Daytona 126503 use?

It uses the Rolex calibre 4131.

What is the Rolex Cosmograph Daytona 126503 case made of?

The case is yellow Rolesor (Oystersteel and yellow gold).

Is the Rolex Cosmograph Daytona 126503 water resistant?

It is rated to 100 m.

How many Rolex Cosmograph Daytona 126503 references are there?

Our database lists 4 references.

About the Rolex Cosmograph Daytona

Rolex introduced the Cosmograph in 1963 with reference 6239, a chronograph intended for racing drivers to measure elapsed time and calculate average speed. Reference 6239 placed the tachymeter scale on the bezel rather than the dial, a feature the line has kept. Early models used manually wound movements. In 1988 the second series brought a self-winding movement based on the Zenith El Primero, and in 2000 Rolex fitted its own chronograph, calibre 4130. The fourth generation, launched in 2023, has a 40mm case and uses calibre 4131.

Sources: Rolex Daytona (Wikipedia), Rolex Daytona History (Bob's Watches), Rolex 116500 vs 126500 (Bob's Watches)