Rolex · Datejust 31

Strap for Datejust 31 Rose Gold / Diamond / White - Roman / President

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
Reference278285rbr-0008
FamilyDatejust 31
MovementRolex caliber 2236 hours, minutes, seconds | date | chronometer
Year2019
CaseRose Gold

Spring bar

Spring bars for Rolex

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

Straps for the Datejust 31 278285rbr-0008

Selected for the 16 mm lug width

All 16 mm straps →

The Datejust 31 278285rbr-0008, seen from the bench

The Rolex Datejust 31 ref. 278285rbr-0008 is a contemporary evolution of an icon created in 1945. This timepiece features an Everose 18-karat gold case of 31 millimeters with a dark blue dial, gold applied indices, and a date window. It is powered by the caliber 2236 Chronometer, an automatic movement with COSC certification (–4/+6 seconds per day) and a 70-hour power reserve. The lug width is 16 millimeters. The case is water-resistant to 100 meters and features a screw-down crown and sapphire crystal.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 278285rbr-0008?

The Rolex Datejust 31 278285rbr-0008 features a 16-millimetre lug width. This specific measurement is reserved for only a handful of high-jewellery Rolex models and is crucial for maintaining the watch's visual proportions and wearing comfort. To verify the lug width, position a calliper between the inner edges of the lugs at the 12 or 6 o'clock position.

Which strap is most suitable for the Rolex Datejust 31 278285rbr-0008?

For the 278285rbr-0008 in Everose gold, alligator leather represents the most coherent choice. A dark brown, burgundy, or black alligator strap emphasises the watch's elegance without visual competition. Shell cordovan is excellent for those seeking a strap that ages beautifully; smooth calf leather offers formal versatility. Avoid excessively casual materials that would undermine the dress-watch identity of this timepiece.

How do you change the strap on a Rolex Datejust 31 278285rbr-0008?

The Rolex Datejust 31 utilises standard spring bars. To replace the strap: remove the watch, position it horizontally, locate the spring bar beneath the lugs, use a dedicated tool to press the pin and extract the old strap, then insert the new strap between the lugs and ensure the spring bar clicks securely. If uncertain, consult an authorised Rolex service centre.

Which aftermarket straps are compatible with the Datejust 31 278285rbr-0008?

Any strap with a 16-millimetre lug width is compatible with the 278285rbr-0008, provided it is crafted with superior artisanal quality. milanostraps.it offers a dedicated collection of 16mm straps in alligator, shell cordovan, calf leather, and organic materials. Always verify that the spring bar is appropriate and the attachment is free from irregularities.

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

A superior artisanal leather strap in fine materials (alligator, shell cordovan, calf) typically lasts 4–7 years with daily wear, extendable to 10 years with proper maintenance. Determining factors include climate conditions, frequency of use, water exposure, periodic cleaning, and leather conditioning. Casati Milano straps include an 18-month guarantee on manufacturing defects and ongoing support for strap maintenance.

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