Rolex · Datejust 31

Strap for Datejust 31 White Gold Diamond / President / Paved 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
Reference178159-0028
FamilyDatejust 31
MovementRolex caliber 2235 hours, minutes, seconds | date | chronometer
CaseWhite Gold

Spring bar

Spring bars for Rolex

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Straps for the Datejust 31 178159-0028

Selected for the 16 mm lug width

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The Datejust 31 178159-0028, seen from the bench

The Datejust 31 represents the feminine version of the Rolex Datejust collection, with a 31mm diameter case. It is powered by the automatic Caliber 2235 with official chronometer certification and display of hours, minutes, seconds and date. The 16mm lugs complete the technical specifications of reference 178159-0028.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178159-0028?

The Rolex Datejust 31 178159-0028 features a <a href="/pages/termine-glossario/misura-ansa">lug width</a> of 16 millimetres. This dimension is specific to mid-sized Datejust 31 models in white gold, corresponding to the internal distance between the attachment pins on the case. Correct <a href="/pages/termine-glossario/misura-ansa">lug width</a> measurement is essential for strap compatibility and secure fitment.

Which strap should I choose for the Datejust 31 178159-0028?

For the white gold Datejust 31, we recommend <a href="/pages/termine-glossario/alligatore">alligator</a> leather of premium grade, calf leather with <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a>, or vulcanised rubber. <a href="/pages/termine-glossario/alligatore">Alligator</a> amplifies formal elegance through texture contrast; vegetable-tanned calf provides daily comfort with distinguished ageing patina; rubber ensures sports versatility without compromising refinement. All straps should feature a <a href="/pages/termine-glossario/deployante">deployant clasp</a> in stainless steel or gold according to preference.

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

Changing the strap requires a spring bar tool and a stable work surface. Locate the first pin near the crown, insert the tool's tip into the small access hole, depress the pin until its end disengages, and remove the old strap. Repeat for the second pin. Insert the new strap's pins ensuring perfect alignment with the case holes. If unfamiliar with this procedure, an authorised Rolex service centre is advisable.

Are aftermarket 16mm straps compatible with the 178159-0028?

Yes, high-quality straps with a 16-millimetre <a href="/pages/termine-glossario/misura-ansa">lug width</a> are fully compatible. Milano Straps offers a dedicated collection of 16mm straps in Italian artisanal leather, vegetable-tanned hide, and noble materials. Always verify that the <a href="/pages/termine-glossario/deployante">deployant clasp</a> is dimensioned for the Rolex case and that leather thickness does not exceed 3–3.5 millimetres to ensure proper caseback closure.

How long does a leather strap last on a daily-worn Rolex?

A quality leather strap, occasionally exposed to moisture but subjected to normal wear, typically lasts between 18 and 36 months depending on tanning density and frequency of use. Vegetable-tanned leather, owing to greater elasticity and resistance to atmospheric elements, often offers slightly longer life cycles. Milano Straps provides an 18-month warranty against manufacturing defects; leather wear remains however natural and contributes to the strap's character 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.

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