Day-Date movement based on caliber 3135. Powers the iconic Rolex President models. Features outer day wheel, quickset day and date functions, and Parachrom hairspring (post-2008). Used Kif Elastor shock protection throughout production.
Movement Type
Automatic
Jewel Count
31 jewels
Power Reserve
48h
Frequency
28,800 vph (8 Hz)
Diameter
28.5mm
Height
6.45mm
Rotor Type
central_rotor
Winding
automatic_bidirectional
Shock Protection
kif
