3185

GMT-Master II caliber with independently adjustable hour hand for dual timezone.

Technical Specifications

• Diameter: 28.5mm
• Height: 6.0mm
• Jewels: 31
• Power Reserve: 48 hours
• Frequency: 28,800 vph

Key Features

• Date Display
• GMT Function
• Independent Hour Hand
• Hacking Seconds

Watch Models

The Caliber 3185 powers the following Rolex collections: GMT-Master II.

Caliber Family

Based on Caliber 3135. Derived calibers: 3186.