Rolex · Datejust 31

Strap for Datejust 31 Stainless Steel Domed Diamond / Oyster / Blue - Roman

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter31 mm
Reference178344-0053
FamilyDatejust 31
MovementRolex caliber 2235 hours, minutes, seconds | date | chronometer
CaseWhite Gold, Stainless Steel

Spring bar

Spring bars for Rolex

The right category for this model · choose the 16 mm size

Straps for the Datejust 31 178344-0053

Selected for the 16 mm lug width

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The Datejust 31 178344-0053, seen from the bench

The Datejust 31 reference 178344-0053 is powered by the Rolex automatic caliber 2235 with official chronometer certification. The movement indicates hours, minutes, seconds, and date. Case with 16mm lugs compatible with standard straps.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 reference 178344-0053?

The lug width of the Rolex Datejust 31 178344-0053 is 16 mm. This measurement is the standard for 31 mm cases and is compatible with all straps designed for 16 mm lugs. To verify the measurement, position a digital calliper between the inner shoulder of the pins: the result should be exactly 16 mm.

What strap material is recommended for the Datejust 31 178344-0053?

For the Datejust 31 178344-0053, the recommended materials in order of prestige are: alligator (with natural grain that evolves over time), calf leather (fine and uniform grain), vegetable tanning (develops distinctive patina richness). Black or dark brown alligator enhances the diamond bezel whilst maintaining visual balance. Calf leather offers daily versatility, whilst vegetable tanning introduces particular chromatic warmth.

How do you change the strap on a Rolex Datejust 31?

Changing the strap on a Datejust 31 requires a specific tool (spring bar tool). Position the watch with the strap facing upwards, insert the tool into the hole positioned laterally on the pin, apply light pressure to release the mechanism, extract the pin and remove the strap. For installation, reverse the procedure: insert the new strap onto the case shoulders and press the pin until you hear the locking click.

Is the Datejust 31 178344-0053 compatible with quality aftermarket straps?

Yes, the Datejust 31 178344-0053 is fully compatible with quality aftermarket artisanal straps. The 16 mm lug width allows the use of straps specifically manufactured for this dimension. We recommend straps made by Italian artisans specialising in watchmaking, who guarantee noble materials and impeccable construction. A quality aftermarket strap can even extend the operational life of the watch by limiting wear on the original release mechanism.

How long does a leather strap last on a Rolex Datejust 31?

The lifespan of a leather strap depends on usage and maintenance. Under normal conditions (daily wear with appropriate care), a quality alligator or calf leather strap lasts 3-7 years before showing significant signs of wear. Noble leather develops natural patina, creating a beauty that increases over time. Vegetable tanning is the most resilient. To extend the lifespan, we recommend periodic cleaning with a soft dry cloth and protection from humid environments and excessive heat.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only