Submariner

Submariner

CATEGORYOyster Perpetual Professional
CertificationSuperlative Chronometer (COSC + Rolex certification after casing)
CaseOyster (monobloc middle case, screw-down case back and winding crown)
Diameter40mm
MaterialOystersteel
Middle CaseOystersteel, satin finish with polished sides
BezelOystersteel, unidirectional rotatable
60-minute graduated Cerachrom insert in black ceramic, moulded graduations and numerals coated with platinum via PVD (Physical Vapour Deposition), first 15 minutes graduated minute-by-minute
Case backSolid, screw down with fine fluting
Winding CrownScrew-down; Triplock triple waterproofness system
CrystalScratch-resistant sapphire
Cyclops lens over the date with double anti-reflective coating
Waterproofness300 metres (1000 feet)
Movement
Calibre3130, Manufacture Rolex
Mechanical movement with bidirectional self-winding via Perpetual rotor
Precision-2/+2 sec./day, after casing
FunctionsCentre hour, minute and seconds hands
Stop-seconds for exact time setting
OscillatorFrequency: 28,800 beats/hour (4Hz)
Paramagnetic blue Parachrom hairspring
Rolex overcoil
Large balance wheel with variable inertia
High-precision regulating via four gold Microstella nuts
Traversing balance bridge
Jewelling31 rubies
Power ReserveApproximately 48 hours
Dial
ColourBlack Lacquer
Hour MarkersHighly legible Chromalight appliques (long-lasting luminescence, blue glow) in 18 ct white gold
Hands18 ct white gold, highly legible Chromalight (long-lasting luminescence, blue glow)
Bracelet
TypeOyster, three-piece solid links
MaterialOystersteel, satin finish with polished edges
ClaspOysterlock folding safety clasp
Rolex Glidelock extension system (approx. 20 mm in increments of approx. 2 mm)

Featured image ©Rolex