Technical Archive

Rolex
Datejust 31 178158-0022— lug 16mm

Rolex Datejust 31 178158-0022: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Datejust 31 Yellow Gold Diamond / President / Paved Roman

Artisanal Note

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

Technical Specifications

Rolex 178158-0022
Lug Width
16 mm

The essential strap measurement.

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Reference

178158-0022

Movement

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

The Heritage

The Datejust 31 represents the female version of the Rolex Datejust collection, with a 31mm case and 16mm lugs. It mounts the automatic caliber 2235 with official chronometer certification, displaying hours, minutes, seconds and date. Reference 178158-0022 features a yellow gold construction with a President bracelet.

FAQ

What is the lug width of the Rolex Datejust 31 178158-0022?

The Rolex Datejust 31 ref. 178158-0022 has a lug width of 16mm. This measurement should be taken with a digital calliper directly between the two lower lugs, flush against the case, to obtain an accurate reading. It is a critical specification when selecting a compatible strap to ensure there is no lateral play or forced fitting during installation.

What is the best strap for the Rolex Datejust 31 178158-0022 in yellow gold?

For an 18-carat yellow gold case, a vegetable-tanned alligator strap is the canonical choice: the scale texture complements the warmth of the metal without competing with it. Shell cordovan, with its dense surface and characteristic patina that develops over time, is a compelling alternative for a more personal pairing. For everyday or active use, smooth calf leather or vulcanised rubber offer comfort and longevity. The correct width is always 16mm.

How do you change the strap on a Rolex Datejust 31 178158-0022?

Replacing the strap on the Datejust 31 requires a fine-tipped spring bar tool, which is inserted into the lateral slots of the lugs to compress the retaining spring bars. Care must be taken: excessive pressure can scratch the yellow gold case. It is advisable to work on a soft surface and, for those unfamiliar with the procedure, to have it carried out by a watchmaker or at the Casati Milano atelier during a fitting consultation.

Are there aftermarket straps compatible with the Rolex Datejust 31 178158-0022?

Yes. The Rolex Datejust 31 178158-0022 accepts any strap with a 16mm lug width and a standard 1.8mm spring bar diameter. Milano Straps offers a curated selection of handcrafted aftermarket straps in alligator, calf leather, shell cordovan and rubber, all made from premium materials and fully compatible with the original Rolex lugs. Compatibility should also be checked on the buckle side: the original Rolex deployant clasp can be reused with specific adapters.

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

The lifespan of a leather strap depends on the type of leather, care and frequency of use. A quality vegetable-tanned alligator strap, regularly conditioned with a neutral leather cream and protected from water and perspiration, can last between three and five years while developing an attractive patina. Shell cordovan offers superior durability due to its dense fibre structure. Milano Straps straps come with an 18-month warranty against manufacturing defects.

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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