Rolex · Datejust 31

Strap for Datejust 31 Rolesor Everose Domed Diamond / Oyster / Silver

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
Reference178341-0058
FamilyDatejust 31
MovementRolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer
CaseRose Gold, Stainless Steel

Spring bar

Spring bars for Rolex

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

Straps for the Datejust 31 178341-0058

Selected for the 16 mm lug width

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The Datejust 31 178341-0058, seen from the bench

The Rolex Datejust 31 ref. 178341-0058 combines Oystersteel with Everose gold inserts and features the iconic fluted bezel. With a 31mm case diameter and the Rolex caliber 2235 automatic movement (48-hour power reserve, COSC certified ±2 seconds/day), this Oyster model offers 100m water resistance. The date window at 3 o'clock with Cyclops lens is the signature Datejust feature. Lug width is 16mm with curved ends required.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 reference 178341-0058?

The Rolex Datejust 31 ref. 178341-0058 has a lug width of 16mm, measured internally between the two lugs using a digital calliper. It is essential to source straps with curved ends to ensure a flush fit against the Oyster case profile.

What is the best strap for the Rolex Datejust 31 178341-0058?

For the Datejust 31 in Everose gold and stainless steel, a vegetable-tanned alligator strap is the most coherent choice for formal wear, as the natural grain complements the polished steel bracelet links. For everyday durability, Box Calf leather or shell cordovan are high-quality alternatives. The strap must feature a 16mm curved-end attachment.

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

Removing the original strap or bracelet from the Datejust 31 requires a springbar tool inserted between the lug and the strap to compress the spring bars. Care should be taken to protect the case surfaces with soft adhesive tape, or the operation can be entrusted to a watchmaker. Standard 16mm spring bars are compatible with most aftermarket straps.

Are there aftermarket straps compatible with the Rolex Datejust 31 178341-0058?

Yes. Several artisan manufacturers produce straps compatible with a 16mm curved-end attachment for the Datejust 31 Oyster case. Milanostraps.it offers a curated selection of 16mm straps in alligator, calf leather, shell cordovan and rubber, available bespoke or ready to ship, fitted with a steel buckle or deployant clasp.

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

The lifespan of a leather strap depends on the quality of the tanning process and daily use. A high-quality vegetable-tanned alligator strap, properly maintained, can last between three and five years. Box Calf leather offers a similar lifespan but requires careful protection from moisture. Using a deployant clasp significantly reduces mechanical stress on the leather, extending the strap's service life.

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