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.
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 Lady-Datejust’s 28mm diameter Oyster case comes with an 18 ct gold middle case, scratchproof sapphire crystal glass and fine fluted case-back that is hermetically screwed down with a special tool. The Twinlock winding crown, fitted with a double waterproofness system, screws down securely against the case. The Cyclops lens at 3 o’clock allows for easy reading of the date.
The new version of the Lady-Datejust is equipped with calibre 2236, a movement entirely developed and manufactured by Rolex. It offers a power reserve of approximately 55 hours.
These new Lady-Datejust watches come with President Bracelets. 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.
Technical details
Model: Rolex Oyster Perpetual Lady-Datejust New Gem-set, Reference 279458 RBR-0001
Case reference: 279458 RBR
Bracelet reference: 83BF08 BR
Case
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)
Movement
Calibre 2236, Manufacture Rolex
Mechanical movement with bidirectional self-winding via Perpetual rotor
Precision: −2 /+2 sec/day, after casing
Oscillator
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
Escapement
• Paramagnetic nickel-phosphorus escape wheel
Jewelling
• 31 rubies
Power reserve
• Approximately 55 hours
Functions
Centre hour, minute and seconds hands
Instantaneous date at 3 o’clock with secure rapid-setting
Stop-seconds for exact time setting
Dial
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
Bracelet
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
Certification
Superlative Chronometer (COSC + Rolex certification after casing)
International five-year guarantee
Also available
Lady-Datejust New Gem-set Reference 279459 RBR-0001
Oyster, 28 mm, white gold and diamonds
Case
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
Bracelet
18 ct white gold, President, three-piece solid links, set with 596 brilliant-cut diamonds
Concealed folding Crownclasp
Dial
Diamond-paved dial, set with 291 diamonds
