Gold Souk, Deira
Rolex Datejust 31 (Blue Roman), reference 278240

Rolex

Datejust 31 (Blue Roman)

Ref. 278240

$10,200 · AED 37,500

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Case31mm Oystersteel, smooth domed bezel
DialBlue, Roman numerals
MovementCalibre 2236
BraceletJubilee, Oystersteel
Water100m
ConditionUnworn
Year2026

The 278240 is the Datejust 31 entirely in Oystersteel with a smooth domed bezel, running on calibre 2236 with its silicon Syloxi hairspring.

This Rolex Datejust 31 wears a 31mm Oystersteel case and a blue dial with Roman numerals. Calibre 2236 inside, on an Oystersteel Jubilee bracelet.

Fun fact: Calibre 2236 carries Rolex's silicon Syloxi hairspring, which is unaffected by magnetic fields and whose patented shape keeps the watch accurate whichever way it is worn.

The collection

Datejust

The first self winding chronometer wristwatch to show the date in a window on the dial

Rolex launched the Datejust in 1945, the company's fortieth year, as the first self winding chronometer wristwatch to indicate the date in a window on the dial. The Jubilee bracelet was made for that watch and named for the anniversary, and it carries the same name today. The Cyclops lens over the date and the fluted bezel are the other two tells, though smooth and gem set bezels and the Oyster bracelet sit alongside them. The line now runs from the Lady-Datejust at 28 mm through 31, 36 and 41 mm, in steel, in gold and in the two combined, across a wide spread of dials.

Sizes in the family

Current line 28, 31, 36 and 41 mm, earlier references vary

Who it suits

For the buyer who wants one Rolex that handles a suit and a weekend, and who chooses on dial and bracelet rather than on size.

See every Datejust we have

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