Rolex Day-Date 40 228398tbr-0001 40mm

The Rolex Day-Date 40 reference m228398tbr-0001 is a breathtaking fusion of luxurious materials and masterful gem-setting, a timepiece that has embodied the zenith of achievement since the Day-Date’s debut in 1956. Entirely crafted in luminous 18 ct yellow gold, this 40mm icon features a captivating bright black sunray dial set with 10 baguette-cut diamonds and a fully diamond-paved bezel, where profound depth meets explosive radiance for supreme exclusivity. Ideal for those who demand the extraordinary in prestige watches, it upholds the signature instantaneous day and date displays in a symphony of gold and gems.

Exquisite Design and Gem-Setting Artistry

The m228398tbr-0001 commands admiration with its 40mm Oyster case—monobloc middle case, screw-down case back, and winding crown—all forged from Rolex’s in-house 18 ct yellow gold foundry for unmatched purity and a warm, enduring brilliance. The bezel is a jewel masterpiece, hand-set with diamonds in precisely carved seats for flawless alignment, height, orientation, and light dispersion.

The bright black dial showcases Rolex’s sunray finishing expertise: fine brushed grooves radiate outward to create dynamic, subtle light reflections, with the intense black applied via Physical Vapour Deposition or electroplating and protected by a light varnish. Elevated by 10 baguette-cut diamond hour markers for striking contrast and legibility, it ensures sophistication amid the sparkle. The day window at 12 o’clock spells the day fully, the date at 3 o’clock is enhanced by the Cyclops lens, and Chromalight provides discreet low-light visibility. Scratch-resistant sapphire crystal safeguards this dramatic canvas.

The President bracelet—launched in 1956 exclusively for the Day-Date—features elegant semi-circular three-piece links in 18 ct yellow gold for exceptional comfort and fluidity, with a concealed folding Crownclasp.

Superior Movement and Enduring Performance

The Calibre 3255, a next-generation perpetual self-winding mechanical movement fully designed and manufactured by Rolex, drives this model with Superlative Chronometer certification (-2/+2 seconds per day after casing). It includes:

• Paramagnetic blue Parachrom hairspring
• High-performance Paraflex shock absorbers
• Bidirectional Perpetual rotor

Functions feature instantaneous day and date changes at midnight, secure rapid-setting, and stop-seconds. A 70-hour power reserve and Twinlock crown system ensure 100 metres (330 feet) water resistance. See Our Rolex Watches Collections.

Technical Specifications

• Model: Rolex Day-Date 40 (m228398tbr-0001)
• Case Diameter: 40 mm
• Material: 18 ct yellow gold
• Bezel: Diamond-set, 18 ct yellow gold
• Dial: Bright black sunray, set with 10 baguette-cut diamonds
• Bracelet: President, semi-circular three-piece links in 18 ct yellow gold
• Movement: Calibre 3255, Manufacture Rolex, self-winding
• Functions: Hours, minutes, seconds; instantaneous day and date with rapid-setting
• Power Reserve: ~70 hours
• Water Resistance: 100 metres / 330 feet
• Crystal: Scratch-resistant sapphire with Cyclops lens over date

FAQ

1. What Creates the Bright Black Dial’s Mesmerizing Effect?

Sunray brushing produces radiating grooves for shifting light play, with intense black application and varnish, accented by 10 baguette-cut diamonds for dramatic brilliance.

2. How Is the Diamond-Paved Bezel Perfected?

Gem-setters hand-craft seats in the gold, selecting and positioning each diamond for precise calibration, orientation, and maximum scintillation in a seamless ring.

3. What Makes the President Bracelet a Hallmark of Luxury?

Its 1956 design with semi-circular solid gold links offers superior suppleness and refinement, complete with a hidden clasp for uninterrupted opulence.

4. How Does the Calibre 3255 Ensure Resilience and Accuracy?

The Parachrom hairspring and Paraflex absorbers defend against magnetism, temperature shifts, and shocks, backed by a 70-hour reserve for dependable performance.

5. What Sets Rolex’s Gem-Setting Apart in This Model?

In-house experts meticulously select, align, and finish diamonds, integrating them flawlessly with the sunray black dial for a factory-original, harmonious jewel watch.