Rolex · Datejust 31
Strap for Datejust 31 White Gold Fluted / President / Black Arabic
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 178279-0054
Selected for the 16 mm lug width
The Datejust 31 178279-0054, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Datejust 31 ref. 178279-0054?
The Rolex Datejust 31 ref. 178279-0054 features a lug width of 16mm. This measurement is specific to the 31mm case diameter and differs from the Datejust 36 and 41 models, which use 20mm lugs. Before purchasing an aftermarket strap, it is advisable to verify the measurement using a digital calliper placed between the two lugs on the case back.
What is the best strap for the Rolex Datejust 31 178279-0054 in white gold?
For an 18-carat white gold case, a vegetable-tanned alligator strap in slate grey, midnight blue or burgundy is the most aesthetically coherent option. The scaled grain of the alligator contrasts elegantly with the polished surface of the white gold. Alternatively, smooth calfskin or shell cordovan offer more understated registers. A deployant clasp in white gold ensures metallic consistency with the case.
How do you change the strap on a Rolex Datejust 31?
To replace the strap on a Rolex Datejust 31, a springbar tool is required to remove the spring bars securing the strap to the lugs. It is recommended to work on a soft surface to protect the white gold case from scratches. The new 16mm strap is fitted by pressing the spring bars into the lug holes until they click into place. If you are not confident performing this operation, it is best to consult a watchmaker or the Casati Milano atelier.
Are there aftermarket straps compatible with the Rolex Datejust 31 178279-0054?
Yes, high-quality aftermarket straps compatible with the Rolex Datejust 31 ref. 178279-0054 are available. The key parameter is a 16mm lug width. Milano Straps offers a selection of alligator, calfskin, shell cordovan and technical nylon straps specifically available in 16mm, with thicknesses and tapers suited to the Rolex Oyster white gold case. All models are handcrafted and available with either a buckle or a deployant clasp.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material, frequency of use and exposure conditions. A quality vegetable-tanned alligator strap, used with care and kept away from water and excessive perspiration, can last between 3 and 6 years while retaining good structural integrity. Shell cordovan develops a patina over time that actually improves its appearance. Milano Straps offers an 18-month guarantee against manufacturing defects on all Casati Milano atelier straps.
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

