No-date workhorse movement. Used in Air-King, Submariner no-date, Explorer, and Oyster Perpetual models. Essentially a 3135 without the date complication. Updated with Parachrom hairspring in 2010 but retained the same caliber number. Features Microstella regulation and Glucydur balance.
Movement Type
Automatic
Jewel Count
31 jewels
Power Reserve
48h
Frequency
28,800 vph (8 Hz)
Diameter
28.5mm
Height
6mm
Rotor Type
central_rotor
Winding
automatic_bidirectional
Shock Protection
kif
