18 ct gold
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white. They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.


White Dial
A fixed inverted red triangle on the dial points to the chosen reference time – the time at home or at the traveller’s usual workplace – on the off-centre 24-hour disc. At a glance, this 24-hour display clearly distinguishes daytime hours from night-time hours in the other time zone. The dials now feature rectangular index hour markers and longer hands, as well as a Chromalight display with long-lasting luminescence, which enhances legibility.
The Oyster bracelet
The Sky-Dweller is fitted on a solid-link Oyster bracelet in Oystersteel, in the case of the white Rolesor version, or, for the yellow Rolesor version, an Oyster bracelet combining Oystersteel and 18 ct yellow gold. The Oyster bracelet benefits from the new concealed attachment system beneath the bezel which ensures seamless visual continuity between the bracelet and case. It is equipped with a folding Oysterclasp and also features the ingenious Rolex-patented Easylink rapid extension system that allows the wearer to easily increase the bracelet length by approximately 5 mm, for additional comfort in any circumstance.


9001 Movement
The Sky-Dweller is equipped with calibre 9001, a self-winding mechanical movement entirely developed and manufactured by Rolex. Protected by seven patents, it is one of the most complex calibres ever developed by the brand. Its architecture, manufacturing quality and innovative features make it singularly precise and reliable.

Dual Time Zone
The two time zones are displayed simultaneously. Local time is indicated by the conventional centre hour, minute and seconds hands. It can be set quickly and easily by means of a mechanism that allows the hour hand to be adjusted independently in one-hour increments both forwards and backwards. Neither the minute and seconds nor the reference time in the second time zone are affected. And, since the watch is not stopped, accuracy is preserved. Reference time in the traveller’s usual place of residence or work is read on a rotating off-centre disc. A fixed inverted red triangle points to the wearer’s chosen reference time. The disc’s 24-hour display allows travellers to clearly distinguish daytime hours from night-time hours in the distant time zone (for example, 10 p.m. versus 10 a.m.). The date change is linked to local time and occurs within a few milliseconds at midnight. So the date displayed in the aperture is always the current date in the wearer’s local time zone.
Specifications
- Model case
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Model caseOyster, 42 mm, yellow gold
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Oyster architectureMonobloc middle case, screw-down case back and winding crown
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Diameter42 mm
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Material18 ct yellow gold
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BezelFluted, bidirectional rotatable Rolex Ring Command
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Winding crownScrew-down, Twinlock double waterproofness system
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CrystalScratch-resistant sapphire, Cyclops lens over the date
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Water-resistanceWaterproof to 100 metres / 330 feet
- Movement
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MovementPerpetual, mechanical, self-winding, dual time zones, annual calendar
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Calibre9001, Manufacture Rolex
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Precision
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FunctionsCentre hour, minute and seconds hands. 24-hour display on off-centre disc. Second time zone. Instantaneous annual calendar at 3 o'clock and rapid-setting of the date. Month display via 12 apertures around the circumference of the dial. Stop-seconds for precise time setting
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OscillatorParamagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
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WindingBidirectional self-winding via Perpetual rotor
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Power reserveApproximately 72 hours
- Bracelet
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BraceletOyster, flat three-piece links
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Bracelet material18 ct yellow gold
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ClaspFolding Oysterclasp with Easylink 5 mm comfort extension link
- Dial
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DialWhite
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DetailsHighly legible Chromalight display with long-lasting blue luminescence
- Certification
- Superlative Chronometer (COSC + Rolex certification after casing)