Rolex
Datejust 31 178343-0015— lug 16mm
Rolex Datejust 31 178343-0015: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 16mm lug width to preserve the original sartorial balance."
Technical Specifications
Rolex 178343-0015The essential strap measurement.
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Rolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer
The Heritage
Compatible Straps
Selected for the 16mm lug width of the Datejust 31
FAQ
What is the lug width of the Rolex Datejust 31 178343-0015?
The Rolex Datejust 31 reference 178343-0015 has a lug width of 16 mm. This measurement is taken with a digital calliper on the inner side of the lugs at their narrowest point, closest to the case. It is a dimension specific to this 31 mm format and determines compatibility with any aftermarket strap.
What is the best strap for the Rolex Datejust 31 178343-0015?
For the Datejust 31 178343-0015 in Rolesor with a mother-of-pearl dial, a vegetable-tanned alligator strap is the most technically and aesthetically coherent choice: the scale texture complements the dial's iridescence without overpowering it. Shell cordovan and box-calf leather are valid alternatives for those who prefer a smoother profile. A deployant clasp in steel or yellow gold completes the pairing while reducing mechanical stress on the leather.
How do you change the strap on a Rolex Datejust 31 178343-0015?
Replacing the strap on the Datejust 31 requires a fine-tip springbar tool to compress the spring bars within the lugs. It is advisable to work on a soft surface to protect the caseback and crystal. Original Rolex spring bars have specific dimensions: when replacing them with aftermarket bars, always verify dimensional compatibility before fitting a 16 mm strap.
Are there aftermarket straps compatible with the Rolex Datejust 31 178343-0015?
Yes. Any strap with a 16 mm lug width is technically compatible with the Datejust 31 178343-0015. Milano Straps produces and sells handcrafted straps in this width across various materials — alligator, calf leather, shell cordovan, rubber — with customisable tapering and a choice of buckle or deployant clasp. Compatibility is guaranteed by the lug width, regardless of the manufacturer.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material, tanning quality and conditions of use. A quality vegetable-tanned alligator strap, with ordinary care, maintains structural and aesthetic integrity for 3 to 5 years of daily wear. Shell cordovan, owing to its dense fibre structure, tends to last longer and develops a distinguished patina over time. Prolonged exposure to water and perspiration accelerates deterioration: for sporting or summer use, alternating with a rubber or NATO strap is advisable.
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 →By appointment only · Milan
The atelier's website: casatimilano.com