Rolex
Datejust 31 178248-0042— lug 16mm
Rolex Datejust 31 178248-0042: 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 178248-0042The essential strap measurement.
Browse 16mm straps →178248-0042
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 ref. 178248-0042?
The Rolex Datejust 31 ref. 178248-0042 features a lug width of 16mm. This measurement is specific to the 31mm case diameter and differs from the Datejust 36 (19mm) and Datejust 41 (20mm). For a correct fit, it is strongly recommended to verify the lug width with a digital calliper before purchasing any aftermarket strap.
What is the best strap for the Rolex Datejust 31 178248-0042 in yellow gold?
For the Datejust 31 in 18-carat yellow gold, a belly-cut alligator strap with a domed grain is the most coherent choice with the watch's aesthetic register. Cognac, honey, or bordeaux tones create either chromatic harmony or controlled contrast with the precious case. Shell cordovan is an equally distinguished alternative, developing an exceptional patina over time. A yellow gold deployant clasp is recommended for full metallic consistency.
How do you change the strap on a Rolex Datejust 31?
To replace the strap on a Datejust 31, a double-ended spring bar tool is required. The 16mm spring bars should be removed carefully from the inner side of the lugs, taking care not to scratch the gold case. It is advisable to rest the watch on a soft cloth during the operation. If in any doubt, it is best to have the strap changed by a qualified watchmaker or a specialist atelier such as Casati Milano.
Are there aftermarket straps compatible with the Rolex Datejust 31 178248-0042?
Yes, high-quality aftermarket straps compatible with the Rolex Datejust 31 ref. 178248-0042 are available. The key specification is the 16mm lug width. Milano Straps offers a curated selection of handcrafted straps in alligator, calf leather, and shell cordovan, made to measure for this reference with shaped ends tailored to the Datejust 31 lug profile.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material, craftsmanship, and daily use. A quality vegetable-tanned alligator strap, used with care and rotated with other straps, can last between 3 and 5 years while maintaining structural integrity and aesthetic appeal. Shell cordovan, owing to its dense fibre structure, tends to offer superior longevity. Prolonged exposure to perspiration, water, and direct perfume contact should be avoided, and a quality leather conditioner should be applied periodically.
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