Rolex · Datejust 31

Strap for Datejust 31 Stainless Steel Fluted / Oyster / Blue - Diamond

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
Reference178274-0061
FamilyDatejust 31
MovementRolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer
CaseWhite 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 178274-0061

Selected for the 16 mm lug width

All 16 mm straps →

The Datejust 31 178274-0061, seen from the bench

The Rolex Datejust 31 ref. 178274-0061 features a 31 mm case in Oystersteel and 18k white gold (white Rolesor) with fluted bezel. It is powered by the Rolex caliber 2235, an automatic movement with bidirectional winding, Parachrom balance wheel, and COSC chronometer certification (±2 seconds per day). The Oyster case is water-resistant to 100 meters. Lug width is 16 mm, a measurement specific to the Datejust 31 that requires dedicated straps to ensure proper fit and security between the case lugs.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178274-0061?

The Rolex Datejust 31 reference 178274-0061 has a lug width of 16 mm. This measurement is specific to the Datejust 31 family and requires straps with an exact 16 mm attachment width to ensure a proper fit between the case lugs and the strap keeper.

What is the best strap for the Rolex Datejust 31 178274-0061?

For the Datejust 31 178274-0061 in two-tone Rolesor (stainless steel and white gold), a vegetable-tanned alligator strap is the most coherent choice with the watch's formal character. Alternatively, grained calf leather suits everyday versatility, while shell cordovan offers a more distinctive personality. A deployant clasp in steel extends the life of any leather strap.

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

To replace the strap on the Datejust 31, you will need a dedicated spring bar tool to remove the spring bars securing the strap to the case lugs. Work on a soft surface to protect both the case and dial. If in doubt, the operation can be carried out by a qualified watchmaker or at an atelier such as Casati Milano.

Are there aftermarket straps compatible with the Rolex Datejust 31 178274-0061?

Yes, there are many aftermarket straps compatible with the Datejust 31 178274-0061, provided they feature a 16 mm attachment width. Milano Straps offers a curated selection of handcrafted leather, NATO, and rubber straps specifically sized for this lug width, finished by hand at the Casati Milano atelier.

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

The lifespan of a leather strap depends on material quality, frequency of use, and care. A high-quality alligator or shell cordovan strap with vegetable tanning can last between 3 and 7 years with regular maintenance. Using a deployant clasp significantly reduces mechanical stress on the lining, extending the strap's service life. Milano Straps provides an 18-month warranty against manufacturing defects.

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.

Request an appointment →

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