4030

Modified Zenith El Primero base, Rolex's first automatic Daytona chronograph movement.

Technical Specifications

• Diameter: 28.5mm
• Height: 6.5mm
• Jewels: 31
• Power Reserve: 53 hours
• Frequency: 28,800 vph

Key Features

• Chronograph
• Date Display

Watch Models

The Caliber 4030 powers the following Rolex collections: Daytona.