Family: 31xx31 jewels50h power reserve28,800 vph (8 Hz)
GMT-Master II ref 16710, Explorer II, 24-hour hand
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
31 jewels
Power Reserve
50h
Frequency
28,800 vph (8 Hz)
Diameter
28.5mm
Height
6.45mm
Display Type
Analog
Rotor Type
Perpetual Rotor
Winding
Automatic (Bidirectional)
Shock Protection
KIF
COMPLICATIONS
DateGMT
FEATURES
Quickset Date
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
In-houseLAUNCH YEAR
1988BASED ON
Rolex 3135CALIBER FAMILY
31xxCOUNTRY
SwitzerlandALSO KNOWN AS
cal. 3185