Rolex · Datejust 31

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

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
Reference178313-0006
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 178313-0006

Selected for the 16 mm lug width

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The Datejust 31 178313-0006, seen from the bench

The Datejust 31 reference 178313-0006 is powered by the automatic caliber 2235 with hour, minute, second and date functions. It features chronometer certification and a 31mm case with 16mm lug width. The movement offers date indication in addition to standard time functions.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178313-0006?

The Rolex Datejust 31 ref. 178313-0006 has a lug width of 16mm. This measurement should be taken directly between the case lugs with a digital calliper before purchasing any aftermarket strap.

What is the best strap for the Rolex Datejust 31 178313-0006?

For a Rolesor case combining yellow gold and steel, a bordeaux or tabac alligator strap with tone-on-tone stitching enhances the warm golden elements. Alternatively, a smooth black or midnight blue vegetable-tanned calf strap offers versatile everyday wear. For warmer months, a two-tone ivory/gold NATO or a vulcanised rubber strap complete the pairing without overstatement.

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

To remove the original Jubilee or Oyster bracelet, a dedicated spring bar tool is required (or a 1.2mm flat-head screwdriver for screw-link bracelets). The 16mm spring bars must be removed carefully to avoid scratching the lugs. It is advisable to have this operation carried out by a watchmaker or a specialist atelier to preserve the polished and brushed surfaces.

Are there aftermarket straps compatible with the Datejust 31 178313-0006?

Yes. Any strap with a 16mm attachment is technically compatible. Milano Straps offers a curated selection of handcrafted 16mm straps specifically made for this case size, available online. For a bespoke result, the Casati Milano atelier produces made-to-measure straps with personal leather selection, bespoke thickness, and choice of buckle or deployant clasp.

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

Longevity depends on the leather type, frequency of wear, and care routine. A quality alligator strap, treated regularly with a neutral leather cream and kept away from water, retains its structural and aesthetic integrity for 3 to 5 years of daily use. Vegetable-tanned calf develops a pleasant patina over time but may require replacement after 2 to 3 years if frequently exposed to perspiration. Avoiding prolonged contact with water and perfume significantly extends strap 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