Rolex 278240-0010 Datejust 31mm Stainless Steel Jubilee Dark Grey Dial Watch

Rolex Datejust 31 — Reference 278240-0010

Presenting the elegant and timeless Rolex Datejust 31 ref. 278240-0010, a refined ladies’ timepiece that blends classic proportions with Rolex’s technical sophistication. Offered in Oystersteel, this reference features a dark grey sunray dial, a domed bezel, and the iconic Jubilee bracelet — a combination that conveys both modernity and heritage.

Case & Exterior Design

The 278240-0010 utilizes Rolex’s Oystersteel — a high-grade, corrosion-resistant alloy developed for strength and durability. The case measures 31 mm in diameter, striking a balance between presence and elegance on the wrist.  Sitting atop the case is a domed stainless-steel bezel, offering a subtle curvature that elegantly frames the dial. The screw-down Twinlock crown, monobloc middle case, and solid case back adhere to Oyster architecture, ensuring water resistance to 100 meters (330 feet). A scratch-resistant sapphire crystal with Rolex’s signature Cyclops magnification over the date window protects the dial.

Dial & Readability

The dial is finished in dark grey sunray — a brushed radial texture that catches light and gives depth and dynamism to the surface. Applied stick (baton) hour markers and slender hands in polished steel maintain clean legibility and understated elegance. At 3 o’clock is the date aperture, enhanced by the Cyclops magnifier for ease of reading. The contrast between the dark grey dial and polished hands & markers provides clarity while preserving a refined aesthetic.

Movement & Technical Excellence

Driving the 278240-0010 is Rolex’s in-house Calibre 2236, a self-winding mechanical movement with reliable performance. It delivers a power reserve of approximately 55 hours, ideal for flexible wear. The movement includes Rolex’s Syloxi silicon hairspring, Paraflex shock absorbers, instantaneous date change, and a stop-seconds mechanism for precision time setting. After casing, the watch meets Rolex’s Superlative Chronometer standard (-2/+2 seconds per day).

Bracelet & Wearability

This model is paired with Rolex’s Jubilee bracelet, composed of five-piece links in Oystersteel. The Jubilee offers supple comfort and elegant style, perfectly complementing the delicate dimensions of the 31 mm case. The clasp is a concealed folding Crownclasp, maintaining a seamless profile on the wrist.

Distinctive Features & Appeal

• The dark grey sunray dial adds a touch of sophistication and visual depth, adapting to lighting for subtle variance.
• The domed bezel offers graceful curvature and frames the dial elegantly, distinguishing it from flat-bezel variants.
• Stick hour indices preserve clarity while enhancing a modern, clean aesthetic.
• All-steel construction (Oystersteel) ensures durability and everyday practicality.
• Movement Calibre 2236 integrates advanced materials (Syloxi, Paraflex) for precision and resilience.
• The Jubilee bracelet and concealed clasp combine comfort and elegance in one seamless expression.
• The 31 mm size is refined yet present — ideal for those who prefer a proportionate, elegant wrist presence.

Ultimately, the Rolex Datejust 31 ref. 278240-0010 is a refined choice for those desiring understated elegance paired with Rolex’s technical excellence. Its dark grey dial, domed bezel, and signature Jubilee styling make it a versatile statement — subtle yet sophisticated, perfect for both daily wear and elevated occasions.