
Rolex
Datejust 36
126231
The two-tone Datejust 36 refined for the modern era.
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Overview
The Rolex Datejust 36 reference 126231 pairs a 36 mm Oyster case in a two-tone combination of Oystersteel and Everose gold with the brand's in-house Calibre 3235, representing the current generation of Rolex's longest-running watch line. Introduced in 2018, it succeeds the reference 116231 and brings meaningful advances in movement technology and case finishing to a silhouette that has defined the dress watch category for decades. A wide palette of dials — ranging from the warm sundust and rich chocolate to the distinctive palm motif — allows the reference to address a broad range of collecting tastes.
History
The Datejust line traces its origins to 1945, when Rolex introduced the first self-winding wristwatch to display the date in a magnified window on the dial, a feature that became known as the Cyclops lens. The two-tone Oystersteel and gold configuration has been a recurring theme throughout the Datejust's history, appealing to collectors who seek a middle ground between a full steel sports watch and an all-precious-metal dress piece. The 126231 arrived as part of a broader generational update in 2018, replacing the 116231 series and standardising the Calibre 3235 across the 36 mm Datejust family. That movement upgrade brought a Chronergy escapement, improved power reserve, and enhanced resistance to magnetic fields — substantive engineering changes beneath a classically familiar exterior.
Notable points
- The 36 mm Oyster case combines Oystersteel with Everose gold, Rolex's proprietary 18 ct rose-gold alloy formulated for lasting colour stability.
- Calibre 3235 features a Chronergy escapement and a power reserve of approximately 70 hours, a significant step forward from the Calibre 3135 it replaced.
- Dial variety is a defining characteristic of the 126231: options include the warm sundust, deep chocolate, and the ornate palm motif, each lending a markedly different character to the same case.
- The Cyclops lens over the date aperture, magnifying the date 2.5×, remains one of the most recognisable design signatures in the Datejust lineage.
- As a current-production reference, the 126231 sits within an unbroken line of two-tone 36 mm Datejust references stretching back through multiple decades of Rolex history.





