Unveiled during Watches and Wonders 2021, the new gem-set versions of the Oyster Perpetual Lady-Datejust watch feature diamond-set cases in 18 ct yellow gold or 18 ct white gold. Two new references are available: 279458 RBR-0001 in yellow gold and 279459 RBR-0001 in white gold.
The case is set with 158 brilliant-cut diamonds on the case sides and lugs as well as 44 brilliant-cut diamonds on the bezel. The President bracelet sparkles with a further 596 brilliant-cut diamonds. The dial, paved with 291 diamonds, features elegant 18 ct gold Roman numerals with a black finish. This new version of the Lady-Datejust is equipped with calibre 2236.
The Lady-Datejust, the feminine version of the iconic Datejust watch, was first appeared in 1957. It carries the elegance of the Datejust in a small size perfectly suited to a slender wrist.
The new generation Lady-Datejust’s Oyster case is 28 mm in diameter. Its middle case is crafted from a solid block of 18 ct gold. The case back, edged with fine fluting, is hermetically screwed down with a special tool that allows only Rolex watchmakers to access the movement. The Twinlock winding crown, fitted with a double waterproofness system, screws down securely against the case. The crystal is made of virtually scratchproof sapphire and is fitted with a Cyclops lens at 3 o’clock for easy reading of the date. The waterproof Oyster case provides optimum protection for the watch’s movement.
The new version of the Lady-Datejust is equipped with calibre 2236, a movement entirely developed and manufactured by Rolex that was released in 2014 and has been fitted on this model since 2015. This self-winding mechanical offers outstanding performance in terms of precision, power reserve, resistance to shocks and magnetic fields, convenience and reliability.
Calibre 2236 is fitted with a Syloxi hairspring, patented and produced by Rolex. This silicon hairspring remains up to 10 times more precise than a traditional hairspring in case of shocks, and its patented geometry ensures the calibre’s regularity in any position. The movement also contains a paramagnetic nickel-phosphorus escape wheel. The oscillator is fitted on the Rolex-designed and -patented high-performance Paraflex shock absorbers, increasing the movement’s shock resistance. Calibre 2236 is equipped with a self-winding module via a Perpetual rotor and offers a power reserve of approximately 55 hours.
These new Lady-Datejust watches come with President Bracelets. Created specially for the launch of the Oyster Perpetual Day-Date in 1956, the three-piece link President bracelet is still reserved exclusively for the Day-Date range and some versions of the Datejust.
The President bracelet on each gem-set version is bedecked with 596 brilliant-cut diamonds. It includes an elegant concealed folding Crownclasp and ceramic inserts inside the links to enhance its flexibility and longevity. In addition, a concealed attachment system ensures seamless visual continuity between the bracelet and case.
Like all Rolex watches, the Oyster Perpetual Lady-Datejust is covered by the Superlative Chronometer certification redefined by Rolex in 2015. The Superlative Chronometer status is symbolized by the green seal that comes with every Rolex watch and is coupled with an international five-year guarantee.
Featured model: Oyster perpetual Lady-Datejust Reference 279458 RBR-0001
Case reference: 279458 RBR
Bracelet reference: 83BF08 BR
Oyster (monobloc middle case, screw-down case back and winding crown)
Diameter: 28 mm
Material: 18 ct yellow gold
Middle case: 18 ct yellow gold, case sides and lugs set with 158 brilliant-cut diamonds (approx. 1.43 ct)
Bezel: 18 ct yellow gold, set with 44 brilliant-cut diamonds (approx. 0.86 ct)
Case back: 18 ct yellow gold, solid, screw-down with fine fluting
Winding crown: Twinlock in 18 ct yellow gold, screw-down, double waterproofness system
Crystal: Scratch-resistant sapphire with anti-reflective coating
Cyclops lens over the date with double anti-reflective coating
Waterproofness: 100 metres (330 feet)
Calibre 2236, Manufacture Rolex
Mechanical movement with bidirectional self-winding via Perpetual rotor
Precision: −2 /+2 sec/day, after casing
• Frequency: 28,800 beats/hour (4 Hz)
• Syloxi hairspring in silicon with patented geometry
• Balance wheel with variable inertia
• High-precision regulating via two gold Microstella nuts
• Traversing balance bridge
• High-performance Paraflex shock absorbers
• Paramagnetic nickel-phosphorus escape wheel
• 31 rubies
• Approximately 55 hours
Centre hour, minute and seconds hands
Instantaneous date at 3 o’clock with secure rapid-setting
Stop-seconds for exact time setting
18 ct yellow gold, set with 291 diamonds
Roman numerals in 18 ct yellow gold, black coating via PVD (Physical Vapour Deposition)
Hands in 18 ct yellow gold
President, three-piece solid links
18 ct yellow gold, set with 596 brilliant-cut diamonds (approx. 5.25 ct), polished edges, ceramic inserts
Concealed folding Crownclasp
Superlative Chronometer (COSC + Rolex certification after casing)
International five-year guarantee
Reference 279459 RBR-0001
Oyster, 28 mm, white gold and diamonds
Monobloc middle case, screw-down case back and winding crown
Diameter: 28 mm
Material: 18 ct white gold with case sides and lugs set with diamonds
Bezel: Set with 44 brilliant-cut diamonds
Winding Crown: Screw-down, Twinlock double waterproofness system
Crystal: Scratch-resistant sapphire, Cyclops lens over the date
Waterproof to 100 metres / 330 feet
18 ct white gold, President, three-piece solid links, set with 596 brilliant-cut diamonds
Concealed folding Crownclasp
Diamond-paved dial, set with 291 diamonds