Rolex Air King
CATEGORY | Oyster Perpetual Professional |
Certification | Superlative Chronometer (COSC + Rolex certification after casing |
Case | |
Type | Oyster (monobloc middle case, screw-down case back and winding crown |
Safety | Internal magnetic shield to protect the movement |
Diameter | 40mm |
Material | Oystersteel |
Middle Case | Oystersteel, satin finish wiht polished sides |
Bezel | Oystersteel, smooth |
Case back | Solid, screw-down with fine fluting |
Winding Crown | Screw-down; Twinlock double waterproofness system |
Crystal | Scratch-resistant sapphire |
Waterproofness | 100 metres (330 feet) |
Movement | |
Calibre | 3131, Manufacture Rolex Mechanical movement with bidirectional self-winding via Perpetual rotor |
Precision | -2/+2 sec./day, after casing |
Functions | Centre hour, minute and seconds hands Stop-seconds for precise time setting |
Oscillator | Frequency: 28,800 beats/hour (4Hz) Paramagnetic blue Parachrom hairspring Rolex overcoil Large balance wheel with variable inertia Paramagnetic nickel-phosphorus escape wheel High-precision regulating via four gold Microstella nuts Traversing balance bridge |
Jewelling | 31 rubies |
Power Reserve | Approximately 48 hours |
Dial | |
Colour | Black, gloss finish |
Hour Markers | 3,6,9 in 18 ct white gold, white transferred minutes numerals Trinagle in 18 ct white gold at 12 o’clock, highly legible Chromalight (long lasting luminescence, blue glow |
Hands | 18 ct white gold, green seconds hand, highly legible Chromalight (long last luminescence, blue glow |
Bracelet | |
Type | Oyster(three-piece solid links) |
Material | Oystersteel, satin-finish with polished edges |
Clasp | Folding Oysterclasp Easlylink 5mm comfort extension link |
Featured image ©Rolex