Rolex · Datejust 31

Strap for Datejust 31 Rose Gold / Domed / Rose / Oyster

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter31 mm
Reference278245-0035
FamilyDatejust 31
MovementRolex caliber 2236 Hours, Minutes, Seconds | Date | Chronometer
CaseRose Gold

Spring bar

Spring bars for Rolex

The right category for this model · choose the 16 mm size

Straps for the Datejust 31 278245-0035

Selected for the 16 mm lug width

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The Datejust 31 278245-0035, seen from the bench

The Datejust 31 represents the female version of the Rolex Datejust collection. It is equipped with the automatic caliber 2236 with chronometer certification and date function. 31mm case with 16mm lugs, reference 278245-0035.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 ref. 278245-0035?

The Rolex Datejust 31 ref. 278245-0035 has a lug width of 16mm. This measurement is specific to the 31mm variant of the Datejust family and is essential for selecting a correctly fitting aftermarket strap. It is advisable to verify the lug width with a digital calliper inserted between the lugs prior to purchase.

What is the best strap for the Rolex Datejust 31 278245-0035 in Everose gold?

For an 18-carat Everose gold case, the most suitable materials are smooth-belly alligator in cognac, bordeaux or midnight blue, and shell cordovan for those who prefer an organic texture that develops a personal patina over time. Vegetable-tanned calfskin is the most versatile option for everyday wear. A deployant clasp in rose gold or steel completes the pairing with visual coherence.

How do you change the strap on a Rolex Datejust 31?

To remove the original bracelet or strap from the Datejust 31, a spring bar tool or fine flat-head screwdriver is required. Insert the tip into the lug slot and compress the spring bar on one side to release the strap. As the case is crafted in gold, it is advisable to protect the lugs with soft adhesive tape. If in doubt, consult a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Rolex Datejust 31 278245-0035?

Yes. Any strap with a 16mm lug width and standard spring bars is compatible with the Datejust 31 ref. 278245-0035. Milanostraps.it offers a curated selection of handcrafted straps in various leathers and materials, all produced with a certified 16mm width. It is important to choose straps with straight or slightly tapered ends to suit the curvature of Rolex lugs.

How long does a leather strap last on a Rolex Datejust 31?

The longevity of a leather strap depends on material quality, frequency of use, and exposure to moisture and perspiration. A high-quality alligator or shell cordovan strap, used regularly but not daily and properly conditioned every two to three months, can last between three and seven years whilst developing a distinguished patina. Vegetable-tanned calfskin typically lasts two to four years under intensive daily wear.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only