Technical Archive

Rolex
Datejust 31 178158-0076— lug 16mm

Rolex Datejust 31 178158-0076: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Datejust 31 Yellow Gold Diamond / President / Champagne

Artisanal Note

"This model requires a precise 16mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 178158-0076
Lug Width
16 mm

The essential strap measurement.

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Reference

178158-0076

Movement

Rolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Rolex Datejust 31 178158-0076 in yellow gold is a recognizable women's timepiece, positioned between the 28mm Lady-Datejust and 36mm Datejust. The 31mm case houses the Rolex 2235 automatic movement with COSC chronometer certification and approximately 48 hours power reserve. The yellow gold case requires a 16mm lug width strap, a less common size in industrial production, making custom construction essential for proper fit and aesthetics.

FAQ

What is the lug width of the Rolex Datejust 31 178158-0076?

The Rolex Datejust 31 178158-0076 has a lug width of 16mm. This measurement is determined by the geometry of the 31mm yellow gold case and is essential when selecting a compatible strap to ensure a precise fit without any compromise to the overall aesthetic.

What is the best strap for the Rolex Datejust 31 178158-0076?

For a 31mm yellow gold case, smooth alligator in black or cognac is the most coherent choice from a sartorial standpoint. Shell cordovan develops a distinctive patina over time, while vulcanised rubber is well suited for more active daily wear. In all cases, the buckle or deployant clasp should be in yellow gold to maintain metallic consistency with the case.

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

Removing the original bracelet or strap requires a spring bar tool with a fine tip. The 16mm spring bars must be compressed laterally to release from the lugs. Care must be taken to avoid scratching the yellow gold case; if in doubt, it is advisable to consult a watchmaker or a specialist atelier such as Casati Milano.

Are there aftermarket straps compatible with the Rolex Datejust 31 178158-0076?

Yes. Bespoke aftermarket straps with a 16mm lug attachment are the most appropriate solution. Milano Straps crafts artisanal straps with an exact 16mm lug width, available in alligator, vegetable-tanned calf leather, shell cordovan and rubber, with a yellow gold buckle or deployant clasp available on request.

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

Longevity depends on the quality of the leather, the tanning process and daily usage. A high-quality alligator or shell cordovan strap, vegetable-tanned, can last between 3 and 7 years with proper care: avoid prolonged contact with water, perspiration and perfume, and store the watch with the buckle unfastened when not in use.

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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By appointment only · Milan

The atelier's website: casatimilano.com