Rolex · Datejust 31
Strap for Datejust 31 Stainless Steel / Yellow Gold / Domed - Diamond / Grey - Diamond / Jubilee
Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Datejust 31 278343rbr-0022
Selected for the 16 mm lug width
The Datejust 31 278343rbr-0022, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Datejust 31 278343rbr-0022?
The Rolex Datejust 31 278343rbr-0022 features a lug width of 16 millimetres. This dimension is specific to the 31mm Datejust models and is essential when selecting a compatible strap. Any strap intended for this timepiece must have precisely 16mm lug width to ensure secure attachment and proper fit.
Which strap material pairs best with the Rolex Datejust 31 278343rbr-0022?
The yellow gold and stainless steel two-tone case of the 278343rbr-0022 pairs exceptionally well with alligator straps in cognac or tobacco tones, which enhance formal elegance. Alternatively, shell cordovan in burgundy or vegetable-tanned calf leather offer sophisticated chromatic harmony. For sportier applications, grained calf leather or vulcanised rubber provide practicality without compromising readability.
How do you change the strap on a Rolex Datejust 31 ref. 278343rbr-0022?
Strap replacement requires specific tools: a spring bar tool and a soft surface to protect the case. Locate the tension spring securing the strap to the lugs, gently insert the tool to compress the spring, remove the worn strap, insert the new 16mm strap, and verify that the spring locks correctly. If uncertain, a certified Rolex watchmaker will perform the operation in minutes.
Are there aftermarket straps compatible with the Datejust 31 278343rbr-0022?
Yes, numerous artisanal manufacturers produce aftermarket straps at 16mm lug width specifically for the Datejust 31. Brands such as Casati Milano, with their Milan sartorial atelier, offer bespoke leather straps of exceptional quality—alligator, cordovan, calf—fully customisable in finish. Always verify that the declared lug width is precisely 16mm to ensure compatibility.
What is the lifespan of a leather strap on a Rolex Datejust 31 278343rbr-0022?
The longevity of a leather strap depends on tanning method, material type, and wear intensity. A quality alligator or shell cordovan strap, with regular maintenance (soft-cloth cleaning, avoiding prolonged water immersion), can last 3–5 years of daily wear. Vegetable-tanned calf leather of robust character sometimes exceeds five years. Casati Milano straps include an 18-month warranty against manufacturing defects, regardless of natural leather 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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

