Cosmograph Daytona 126509 Reference 126509-0001
Cosmograph Daytona
Overview
The Rolex Cosmograph Daytona 126509 comes in a 40 mm 18 ct white gold case with a white bezel and a black dial. It runs on the self-winding Rolex calibre 4131 with a 72 hour power reserve and is water resistant to 100 metres. The model has one reference, 126509-0001. It comes on an Oyster bracelet.
- Case diameter
- 40 mm
- Movement
- Calibre 4131
- Water resistance
- 100 m
- Power reserve
- 72 h
Specifications
Specifications from the1916company.com. Last checked . SourcesCase
- Diameter
- 40 mm
- Material
- 18 ct white gold
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bezel
- Fixed, with engraved tachymetric scale, in 18 kt white gold
Dial
- Colour
- Bright black and steel
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.
Cosmograph Daytona 126509 questions
What size is the Rolex Cosmograph Daytona 126509?
The Rolex Cosmograph Daytona 126509 has a 40 mm case.
What movement does the Rolex Cosmograph Daytona 126509 use?
It uses the Rolex calibre 4131.
What is the Rolex Cosmograph Daytona 126509 case made of?
The case is 18 ct white gold.
Is the Rolex Cosmograph Daytona 126509 water resistant?
It is rated to 100 m.
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.
