Rolex Oyster Perpetual Ref. 177200 – 70160/en
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Rolex Oyster Perpetual Ref. 177200 – 70160 (case – bracelet)
Press release:
Baselworld 2014 The quintessential Oyster by Rolex
CASE | |
Type | Oyster (monobloc middle case, screw-down case back, and winding crown |
Diameter | 31 mm |
Material | 904L stainless steel superalloy, satin finished |
Case back | Screw-down with Rolex fluting |
Bezel | Domed |
Winding crown | Screw-down, Twinlock double waterproofness system |
Crystal | Scratch-resistant sapphire |
Waterproofness | 100 metres (330 feet) |
MOVEMENT | |
Calibre | 2231, Manufacture Rolex Mechanical movement with bidirectional self-winding via Perpetual rotor |
Precision | Officially certified Swiss chronometer (COSC) |
Functions | Centre hour, minute and seconds hands Stop-seconds for precise time setting |
Oscillator | Frequency: 28,800 beats/hour (4Hz) Hairspring with Breguet overcoil Balance wheel with variable inertia High-precision regulating via two gold Microstella nuts Traversing balance bridge |
Jeweling | 31 rubies |
Power reserve | Approximately 48 hours |
DIAL | |
Colour | White lacquer Azzurro blue, sunray finish |
Hour markers | Roman numerals III, VI and IX in 18 ct white gold, blue hour ring |
Hands | 18 ct white gold with phosphorescent material |
BRACELET | |
Type | Oyster three-piece solid links |
Material | 904L stainless steel superalloy, satin finished, polished edges |
Clasp | Folding Oysterclasp |