Rolex · Datejust 31

Strap for Datejust 31 Everose Fluted / President / Silver Computer

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
Reference178275f-0001
FamilyDatejust 31
MovementRolex caliber 2235 hours, minutes, seconds | date | chronometer
CaseRose Gold

Spring bar

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Straps for the Datejust 31 178275f-0001

Selected for the 16 mm lug width

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The Datejust 31 178275f-0001, seen from the bench

The Datejust 31 represents the female version of the Rolex Datejust collection. It is powered by the automatic caliber 2235 with chronometer certification and functions for hours, minutes, seconds and date. The 31mm case features 16mm lugs.

Frequently asked questions

What is the exact lug width of the Rolex Datejust 31 ref. 178275f-0001?

The lug width of the Rolex Datejust 31 178275f-0001 is precisely 16 millimetres. This dimension is specific to the Ladies 31mm iteration and represents a proprietary Rolex standard, not universally adopted across watchmaking. Correct measurement is performed by gauging the distance between the two lugs perpendicular to the longitudinal axis. It is crucial not to confuse this specification with the total case width, which measures approximately 24 millimetres. Any compatible strap must respect this 16 ± 0.2 millimetre tolerance rigorously.

Which strap material best complements the Datejust 31 in Everose?

Alligator belly cut in cognac or chocolate tones represents the most aesthetically coherent choice with Everose, a rose gold alloy that benefits from a natural-grain leather without visual competition. The elegant alternative is vegetable-tanned calf, which develops a compelling patina through wear. For those seeking natural water resistance and versatility, equine shell cordovan is the optimal solution, particularly suited to temperate-humid climates such as Italy. We advise against synthetic leather straps, which cannot dialogue visually with the preciousness of Everose gold.

How does one change the strap on a Rolex Datejust 31 ref. 178275f-0001?

Strap replacement on the Datejust 31 178275f-0001 requires specific tools: a spring bar tool and an illuminated, stable work surface. Position the watch horizontally, then press the elastic spring bar peg from beneath the lug with the tool, pushing gently inward until the bar disengages from the spring. Once the old strap is extracted, insert the new one by aligning the leather holes with the respective spring bars, applying uniform pressure until the locking click is felt. It is paramount never to force during this operation, as the Everose lugs are sensitive to deformation. We recommend entrusting this procedure to a professional service if you lack experience.

Is an aftermarket strap compatible with the Rolex Datejust 31 178275f-0001?

Yes, any strap featuring a 16-millimetre lug width is physically compatible with the 178275f-0001. However, technical compatibility does not imply aesthetic coherence. High-quality Italian artisanal straps, crafted from alligator, vegetable-tanned calf, or shell cordovan with refined finishing, guarantee a presentation worthy of the Everose case. Inferior-quality or industrially generic straps will result in a flattening of the model's perceptual impact. We recommend selecting suppliers who document their manufacturing techniques and offer durability guarantees.

What is the typical lifespan of a leather strap on a watch like the Datejust 31?

Leather strap durability depends upon material origin, tanning quality, and wear regime. Artisanal vegetable-tanned alligator maintains structural integrity between 4 to 6 years of daily wear, developing a desirable patina. Equine shell cordovan, owing to its natural density, can exceed 7 to 8 years. Traditional calf offers a median lifespan of 3 to 4 years, whilst vegetable-tanned calf reaches 5 years. In humid climates such as Italy, abstain from wearing the watch after freshwater immersion and allow natural air-drying—never employ artificial heat sources. Best practice involves rotating two straps, reducing continuous exposure of one and prolonging the overall lifespan of both.

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