Rolex Day-Date 6611“President”
Ref. 6611
Second generation of Rolex Day-Date, now fitted with a free-sprung balance version of caliber 1055. Superlative Chronometer Officially Certified on dial. Pictured in rose gold with Serpico Y Laino dial. Introduced in '57, replaced by the 1800-generation around '59. 6611b reference also seen.

Diameter36mm
Water Resistance50m
Case & Dimensions
Diameter36 mm
MaterialRose Gold
Water Resistance50 m
Advertisement
Movement
CaliberRolex 1055b
ManufacturerRolex
TypeAutomatic
Frequency18,000 bph
Jewels25
Complicationshoursminutessecondsdatedaychronometer
Also Known As
Cal. 1055bCaliber1055bCaliberRolex 1055base_caliber
Production
Introduced1958
StatusCurrent Production
Authentication Intelligence
Authentication Markers (110)
Bezel Detail(17)Bracelet Detail(12)case_detail(20)clasp_code(2)Crown Detail(8)Crystal Detail(12)Dial Detail(9)Lume DetailMovement Tell(27)Serial Number Format(2)