Sky-Dweller

Sky-Dweller

CATEGORYOyster Perpetual Classic
CertificationSuperlative Chronometer (COSC + Rolex certification after casing)
CaseOyster (monobloc middle case, screw-down case back and winding crown)
Diameter42mm
MaterialOystersteel and 18 ct white gold (White Rolesor)
Middle CaseOystersteel, polished finish
Bezel18 ct white gold, fluted, bidirectional rotatable Ring Command for function setting
Case backSolid, screw down with fine fluting
Winding CrownScrew-down; Twinlock double waterproofness system
CrystalScratch-resistant sapphire
Cyclops lens over the date with double anti-reflective coating
Waterproofness100 metres (330 feet)
Movement
Calibre9001, Manufacture Rolex
Mechanical movement with bidirectional self-winding via Perpetual rotor
Precision-2/+2 sec./day, after casing
FunctionsCentre hour, minute and seconds hands
Reference time (home time) via off-centre 24-hour disc
Second time zone (local time) via conventional hands, independent rapid-setting of the hour hand
Instantaneous annual calendar with Saros system: date at 3 o’clock with bidirectional secure rapid-setting, month display via 12 apertures around the circumference of the dial
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
High-performance Paraflex shock absorbers
Jewelling40 rubies
Power ReserveApproximately 72 hours
Dial
ColourDweller_English_2018 clean
Blue, sunray finish
Hour MarkersIndex hour markers in 18 ct white gold, Chromalight (long-lasting lumiescence, blue glow)
Hands18 ct white gold, Chromalight (long-lasting lumiescence, blue glow)
Bracelet
TypeOyster, three-piece solid links
MaterialOystersteel, polished centre links, satin-finished outer links with polished edges
ClaspFolding Oysterclasp
Easylink 5 mm comfort extension link

Featured image ©Rolex