Manufacturer:

• Rolex

Description:

• Self-winding movement, bi-directional winding
• Chronometer certificate (COSC)
• Breguet hairspring
• Microstella precision adjustment with regulation screws
• Kif shock protection

Functions:

• Central seconds
• Rapid calendar advance
• Hacking seconds
• GMT function (dual time zone) in 24-hours mode

Data:

• 12½ lignes
• D 28.5 mm, H 6.3 mm
• 27 jewels
• 28,800 A/h
• Power reserve 42h

Production period:

• Production 1983-1989
• Successor Rolex 3185