Rolex Datejust 36 Steel — Blue Index Dial, Fluted Bezel | Ref. 126234

Introduced as part of the 2019 generation of Datejust 36, Ref. 126234 represents the current-production steel Datejust with fluted bezel—an architectural update on the canonical 36 mm format. Rolex returned the 36 mm size to the core Datejust line with the 126xxx series after years of the 41 mm dominating the men's offering, and the 126234 carries the full benefit of third-generation Rolex movement technology in a case size that many collectors argue is the Datejust's most proportionally ideal form. The blue index dial is one of the most requested configurations, offering legibility and depth simultaneously.

Calibre 3235 powers this reference—a movement that represents a complete architectural departure from the preceding 3135. The 3235 features Rolex's Chronergy escapement, which delivers approximately 15 percent greater energy efficiency than the lever escapement it replaces, contributing to the 70-hour power reserve. The movement oscillates at 28,800 vph and incorporates a Syloxi-derived Parachrom hairspring. The Oyster bracelet in steel provides the reference with its most utilitarian configuration.

Among current-production Datejust references, the 126234 in blue index remains one of the most actively sought by collectors new to Rolex—it is often the entry point for buyers building a Rolex collection with long-term hold intentions. Its combination of genuine horological advancement, timeless case proportions, and conservative dial language ensures it will read as well in twenty years as it does today.