Cosmograph Daytona Reference 16520
Known to collectors as the Zenith Daytona · 1988 to 2000
Overview
The Rolex Cosmograph Daytona has a 40 mm Oystersteel case. It runs on the self-winding Rolex calibre 4030 and is water resistant to 100 metres. One reference is listed, 16520.
- Case diameter
- 40 mm
- Movement
- Calibre 4030
- Water resistance
- 100 m
- Case material
- Oystersteel
Specifications
Specifications from Watches of Switzerland. Last checked . SourcesCase
- Diameter
- 40 mm
- Material
- Oystersteel
- Water resistance
- 100 m
- Bezel
- Steel
Movement
- Calibre
- Rolex 4030
- Type
- Automatic
Not yet recorded: thickness, lug width, lug-to-lug, crystal, case back, shape, colour, indexes, hands, functions, years.
Cosmograph Daytona questions
What size is the Rolex Cosmograph Daytona?
The Rolex Cosmograph Daytona has a 40 mm case.
What movement does the Rolex Cosmograph Daytona use?
It uses the Rolex calibre 4030.
What is the Rolex Cosmograph Daytona case made of?
The case is oystersteel.
Is the Rolex Cosmograph Daytona water resistant?
It is rated to 100 m.
About the Rolex Oyster Perpetual
The Oyster Perpetual combines two early Rolex developments: the Oyster case of 1926, the first waterproof wristwatch case, and the Perpetual self-winding movement introduced in 1931. As a model line it is the simplest in the Rolex catalogue, a time-only watch. A 2020 update brought lacquer dials in bright colours and a 41mm model in place of the 39mm, with calibre 3230 in the 41mm and 36mm sizes and smaller sizes alongside them. In 2026, the centenary of the Oyster case, Rolex released a 41mm Oyster Perpetual in Rolesor, combining steel with yellow gold.
