Rolex Day-Date 40 228398tbr-0003 40mm

The Rolex Day-Date 40 reference m228398tbr-0003 is a harmonious fusion of classic prestige and subtle sparkle, a watch that has defined leadership since the Day-Date’s introduction in 1956. Crafted entirely in radiant 18 ct yellow gold, this 40mm model features a captivating champagne-colour sunray dial and a diamond-set bezel, blending inviting warmth with refined light play for enduring sophistication. Ideal for those who appreciate balanced luxury, it presents the signature instantaneous day and date displays with graceful poise.

Exquisite Design and Gem-Setting Artistry

The m228398tbr-0003 radiates with its 40mm Oyster case—monobloc middle case, screw-down case back, and winding crown—all cast from Rolex’s in-house 18 ct yellow gold foundry for exceptional purity and a rich, welcoming luster. The bezel, paved with diamonds, forms a luminous frame where each gem is hand-set for precise alignment, orientation, height, and optimal light dispersion.

The champagne-colour dial showcases Rolex’s sunray finishing: fine grooves brushed outward from the center create subtle, dynamic reflections that evolve with movement. The champagne tone is applied via Physical Vapour Deposition or electroplating, sealed with a light varnish for lasting depth and vibrancy. Chromalight luminescence on the hands and markers provides a sustained blue glow. The day window at 12 o’clock spells the day fully, the date at 3 o’clock is enlarged by the Cyclops lens, and scratch-resistant sapphire crystal safeguards the dial.

The President bracelet—introduced in 1956 exclusively for the Day-Date—features semi-circular three-piece links in 18 ct yellow gold for luxurious 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, powers 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

Technical Specifications

• Model: Rolex Day-Date 40 (m228398tbr-0003)
• Case Diameter: 40 mm
• Material: 18 ct yellow gold
• Bezel: Diamond-set, 18 ct yellow gold
• Dial: Champagne-colour sunray with Chromalight luminescence
• 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

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Frequently Asked Questions

1. What Produces the Champagne Sunray Dial’s Inviting Warmth?

Outward-brushed grooves diffuse light dynamically, with the champagne applied precisely and varnished for a shifting, golden-toned radiance.

2. How Is the Diamond-Set Bezel Refined for Elegance?

Gem-setters hand-craft seats in the gold, positioning each diamond for exact calibration, regularity, and balanced light return in a cohesive design.

3. What Distinguishes the President Bracelet in Gold Models?

Its 1956 creation with semi-circular links in precious gold offers superior fluidity and comfort, featuring a concealed clasp for seamless luxury.

4. How Does the Calibre 3255 Maintain Performance Over Time?

The Parachrom hairspring and Paraflex absorbers resist magnetism, temperature shifts, and shocks, while the extended reserve supports unwavering accuracy.

5. What Craftsmanship Ensures the Gold and Gem Balance?

In-house foundry purity integrates with expert gem-setting for flawless harmony, uniting the sunray champagne dial with sparkling bezel elements in timeless luxury.