Is the Datejust 31 a good everyday watch?

Yes. The steel case, 100 m water resistance and automatic movement make it a practical daily watch, and the 31 mm size keeps it light on the wrist.

How does the 278240 differ from the fluted-bezel Datejust 31?

This reference has a smooth domed Oystersteel bezel. Fluted-bezel Datejust 31 models use a white gold fluted bezel, which is flashier and more expensive.

What is the power reserve of the caliber 2236?

About 55 hours when fully wound, so it keeps running over a weekend off the wrist.

Is the 31 mm case too small?

It suits wrists that find 36 mm too large. Shoppers used to 36 mm or bigger often prefer the Datejust 36.

What comes with the watch?

The watch, a Rolex box and store papers, with a three-year store warranty rather than a Rolex card.

Is it waterproof enough for swimming?

It is rated to 100 m with a screw-down crown, which covers swimming and daily water contact but not diving.

Rolex Steel and White Gold Datejust 31 - Domed Bezel - White Roman Dial - Jubilee Bracelet — Ref. 278240

Q: Where is the Rolex Steel and White Gold Datejust 31 - Domed Bezel - White Roman Dial - Jubilee Bracelet — Ref. 278240 cheapest?

At TREVALIE, for $397.67, 97% under what the other stores charge, as of our latest check.

Q: Where can I buy the Rolex Steel and White Gold Datejust 31 - Domed Bezel - White Roman Dial - Jubilee Bracelet — Ref. 278240?

18 stores we checked sell it, including Wrist NYC, DonChrono, TREVALIE, Little Switzerland, Amazon.

Best price now

$397.67at TREVALIEChecked 2 h ago

97% under what the other stores charge

Compared across 17 stores. Prices are checked against each store and labelled with when.

Visit TREVALIE

What reviewers say

Owners of the Datejust 31 praise its comfortable size, the smooth Jubilee bracelet and the reliable automatic movement. Some find the 31 mm case small and the domed bezel less distinctive than the fluted one.

What people mention

SizeMixedOwners like the 31 mm case for smaller wrists but some find it small next to 36 mm Datejusts.
BraceletPraisedThe five-link Jubilee bracelet is called comfortable and well finished, with a secure concealed clasp.
MovementPraisedThe caliber 2236 is described as accurate and dependable, with a useful 55-hour reserve.
BezelMixedThe domed steel bezel is seen as understated; some prefer the fluted bezel's shine.
LegibilityMixedRoman numerals suit the classic look, though some say stick markers read faster.

About the Rolex Steel and White Gold Datejust 31 - Domed Bezel - White Roman Dial - Jubilee Bracelet — Ref. 278240

This Rolex Datejust 31 has a 31 mm Oystersteel Oyster case with a domed bezel. The hour markers are Roman numerals made of 18k white gold. The case has a monobloc middle case and a solid screw-down case back.

The screw-down winding crown uses the Twinlock double waterproofness system. A scratch-resistant sapphire crystal covers the dial, with a Cyclops lens over the date window at the 3 o'clock position. Center hour, minute and seconds hands show the time.

Inside is a mechanical, self-winding caliber 2236 movement with 31 jewels and a 55-hour power reserve. The Oystersteel Jubilee bracelet has five-piece links and a concealed folding Crownclasp.

Brand

Rolex

Model

Datejust 31

Reference

278240

Case size

31 mm

Case

Oyster, Oystersteel, monobloc middle case, screw-down case back

Bezel

Domed, Oystersteel

Hour markers

Roman numerals in 18k white gold

Hands

Center hour, minute and seconds hands

Functions

Date, minute, seconds

Crystal

Scratch-resistant sapphire, Cyclops lens over the date

Movement

Mechanical, self-winding, caliber 2236

Jewels

Power reserve

55 hours

Rolex Steel and White Gold Datejust 31 - Domed Bezel - White Roman Dial - Jubilee Bracelet — Ref. 278240

Best price now

Rolex Steel and White Gold Datejust 31 - Domed Bezel - White Roman Dial - Jubilee Bracelet — Ref. 278240

Best price now

Ask our agent about this product

Price facts

Our take on the Rolex Steel and White Gold Datejust 31 - Domed Bezel - White Roman Dial - Jubilee Bracelet — Ref. 278240