Family: 41xx48 jewels72h power reserve28,800 vph (8 Hz)
The Yacht-Master II is equipped with calibre 4161, a self-winding mechanical regatta chronograph movement entirely developed and manufactured by Rolex. The result of over 35,000 hours of development, the Yacht-Master II introduces a new regatta countdown with a unique, patented mechanical memory created by Rolex.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
48 jewels
Power Reserve
72h
Frequency
28,800 vph (8 Hz)
Diameter
30.5mm
Height
6.5mm
Display Type
Analog
Winding
Manual
Shock Protection
Paraflex
COMPLICATIONS
Chronograph
FEATURES
Column Wheel
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2013BASED ON
Rolex 4130CALIBER FAMILY
41xxCOUNTRY
SwitzerlandALSO KNOWN AS
rolex 4161