Rolex
Datejust 31 178341-0003— lug 16mm
Rolex Datejust 31 178341-0003: 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 178341-0003The essential strap measurement.
Browse 16mm straps →178341-0003
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 exact lug width of the Rolex Datejust 31 Ref. 178341-0003?
The Rolex Datejust 31 Ref. 178341-0003 has a lug width of 16 millimetres. This dimension is specific to Datejust 31 models and certain Rolex ladies' watches. To verify strap compatibility, measure the internal space between the two attachment points (lugs) on the case: it must be precisely 16 mm. This measurement ensures perfect alignment with the 31 mm case proportion.
What are the best strap materials for this Rolex model?
For the Datejust 31 178341-0003 in Everose gold and steel, we recommend genuine alligator (natural texture that enhances rose gold), vegetable-tanned calf leather developing golden patina, shell cordovan with mirror-like surface, or rubber with steel deployante for sporty options. Material choice depends on use: cognac alligator for warm elegance, black calf for formality, deep red shell cordovan for evening wear, beige rubber for active daily use.
How do I change the strap on a Rolex Datejust 31?
Changing the strap on a Datejust 31 requires a spring bar tool to extract the pins from the case lugs. Position the tool in the pin's groove and gently pull outward. Once the lugs are free, the strap slides away. Reinsert the pins into the new strap, aligning them correctly with the case lugs. To avoid the risk of scratching the case, Casati Milano offers a professional bespoke strap-change service with styling consultation included.
Is an aftermarket strap compatible with the Rolex Datejust 31 Ref. 178341-0003?
Yes, provided the lug width is exactly 16 mm. Many artisanal premium straps are designed specifically for this dimension. Before purchase, always verify with the vendor that compatibility with 16 mm lugs is confirmed. Milano Straps bracelets are crafted to measure and guaranteed for perfect fit on this model. Avoid generic online straps: a Rolex deserves precision.
How long does a leather strap last on a Rolex Datejust 31?
Leather strap longevity depends on usage and quality. With ordinary care (avoiding excessive water, minimal direct sunlight), an alligator or shell cordovan strap lasts 3–5 years, while vegetable-tanned calf may last 2–4 years. Rubber has greater longevity (5–7 years). Casati Milano straps include 18-month warranty against manufacturing defects. Patina and ageing are considered virtues, not flaws: they enhance appearance over time.
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