Rolex Day-Date 40 228238-0004 40mm

The Rolex Day-Date 40 reference m228238-0004 is a pinnacle of opulent distinction and horological mastery, a watch that has epitomized leadership and excellence since the Day-Date’s groundbreaking launch in 1956. Fully crafted in lustrous 18 ct yellow gold, this 40mm icon features a striking bright black diamond-set dial with sunray finish, merging profound depth with radiant sparkle for an aura of commanding sophistication. Designed for visionaries who demand the utmost in prestige and performance, it delivers the hallmark instantaneous day and date displays in a package of unparalleled luxury.

Rolex Day Date for sale in GMTwatches

Design and Craftsmanship

The Day-Date 40 m228238-0004 gleams with its 40mm Oyster case, comprising a monobloc middle case, screw-down case back, and winding crown—all cast in Rolex’s in-house 18 ct yellow gold for supreme purity and enduring brilliance. The fluted bezel in matching yellow gold, a signature element refined over decades, captures and reflects light through its meticulously crafted grooves.

The bright black dial stands as a showcase of expertise: adorned with a sunray finish achieved through masterful brushing techniques that create radial grooves for subtle, shifting light reflections. The intense black hue is applied via Physical Vapour Deposition or electroplating, sealed with a light varnish for lasting vibrancy, and elevated by 10 baguette-cut diamonds as hour markers for exquisite brilliance. The full day spelling arcs at 12 o’clock, while the date at 3 o’clock is magnified by the Cyclops lens. Chromalight on the hands offers discreet luminescence, all shielded by scratch-resistant sapphire crystal.

Exclusive to the Rolex watches Day-Date since 1956, the President bracelet in 18 ct yellow gold features refined semi-circular three-piece links for exceptional comfort and fluidity, fastened by a concealed folding Crownclasp.

Exceptional Technical Performance

Driven by the advanced Calibre 3255—a perpetual mechanical self-winding movement entirely designed and produced by Rolex—this model earns Superlative Chronometer status (-2/+2 seconds per day after casing). It incorporates a paramagnetic blue Parachrom hairspring, high-performance Paraflex shock absorbers, and bidirectional Perpetual rotor for optimal winding.

Instantaneous day and date changes at midnight, independent rapid-setting, and stop-seconds enable precise adjustments. An approximate 70-hour power reserve ensures reliability, while the Twinlock system guarantees 100 metres (330 feet) water resistance.

Watch Specifications

• Model: Rolex Day-Date 40 (m228238-0004)
• Case Size: 40 mm
• Material: 18 ct yellow gold
• Bezel: Fluted, 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: Centre hour, minute, and seconds; instantaneous day and date with rapid-setting
• Power Reserve: Approximately 70 hours
• Water Resistance: 100 metres / 330 feet
• Crystal: Scratch-resistant sapphire with Cyclops lens over the date

FAQs

1. How Does the Sunray Finish Elevate the Bright Black Dial?

Radial brushed grooves diffuse light delicately, creating dynamic reflections, while 10 baguette-cut diamonds add sophisticated sparkle against the deep black backdrop.

2. What Distinguishes the President Bracelet in This Model?

Exclusive to the Day-Date, its semi-circular three-piece links in solid 18 ct yellow gold provide unmatched comfort and a concealed Crownclasp for refined seamless wear.

3. What Innovations Power the Calibre 3255?

A 70-hour reserve, Parachrom hairspring for magnetic and thermal resistance, Paraflex absorbers for shocks, and enhanced efficiency for lifelong precision.

4. How Is Rolex’s 18 ct Yellow Gold Ensured for Quality?

Cast in-house from the purest metals, rigorously inspected alloys deliver exceptional luster, durability, and the warm glow iconic to precious-metal Day-Dates.

5. What Makes This Watch Suitable for Daily Prestige?

Robust Oyster architecture, 100-metre water resistance, and sapphire crystal combine luxury with practical resilience for confident wear in any environment.