Rolex · Datejust 31

Strap for Datejust 31 Rolesor Yellow Fluted / Jubilee / Champagne Floral

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
Reference178273-0092
FamilyDatejust 31
MovementRolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer
CaseYellow 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 178273-0092

Selected for the 16 mm lug width

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The Datejust 31 178273-0092, seen from the bench

The Rolex Datejust 31 model 178273-0092 features a 31mm Rolesor case—a combination of Oystersteel and 18-carat yellow gold—equipped with the Rolex caliber 2235 automatic movement, certified chronometer with 28,800 vibrations per hour. The case includes a date window at 3 o'clock, hours, minutes, and seconds displays. This model has a 16mm lug width, the standard specification for this reference, designed to fit proportionally on the modern wrist.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178273-0092?

The Rolex Datejust 31 178273-0092 is equipped with a 16mm lug width. This dimension is the specific standard for the 31mm ladies models in the Datejust collection. The lug width is measured as the linear distance between the two springbars that connect the strap to the case, excluding the springbars themselves.

Which strap do you recommend for the Datejust 31 178273-0092?

For the Datejust 31 178273-0092, we recommend an authentic alligator strap in medium brown or cognac tones, which creates a visually perfect dialogue with the Rolesor combination (yellow gold and stainless steel) of the case. A sophisticated alternative is vegetable-tanned calf leather, which offers softness and a patina that stratifies over time. For those seeking extreme durability, shell cordovan is the definitive choice.

How do you change the strap on a Rolex?

Strap replacement is accomplished via the removable springbars that connect the strap to the case. Using a purpose-designed tool (spring bar tool), you gently press one of the springbars to extract it from its seat, then slide the strap out of the case lug. The reverse procedure allows installation of the new strap. If you prefer to avoid DIY work, Casati Milano offers this service at the Milan atelier.

Is an aftermarket strap compatible with the Datejust 31 178273-0092?

Yes, any quality artisanal strap with a 16mm lug width is compatible with the Datejust 31 178273-0092. Compatibility depends exclusively on lug width, not on the strap manufacturer. Milanostraps offers a comprehensive selection of 16mm leather straps in premium hides, customisable bespoke.

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

A quality artisanal leather strap, subjected to regular daily use, has an estimated lifespan of 3 to 5 years. The aging of leather is a natural and desirable process – the patina that develops increases aesthetic character. A shell cordovan strap, owing to its superior density, can last 7–8 years. Regular maintenance (gentle cleaning, natural drying, occasional conditioning) significantly extends the strap's serviceable life.

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