Rolex · Datejust 41

Strap for Datejust 41 Rolesor Everose Fluted / Jubilee / Slate - Roman

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter41 mm
Reference126331-0016
FamilyDatejust 41
MovementRolex caliber 3235 Hours, Minutes, Seconds | Date | Chronometer
CaseRose Gold, Stainless Steel

Recommended spring bar

Spring bars modern Rolex 21mm × 1.5mm

Technical match for lug width and diameter · lug 21 mm · Ø 1.5 mm · closed lugs

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Straps for the Datejust 41 126331-0016

Selected for the 21 mm lug width · workshop selection

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The Datejust 41 126331-0016, seen from the bench

The Rolex Datejust 41 126331-0016 combines Everose 18k gold and 904L stainless steel in a 41mm case. This bimetallic model features the proprietary Rolex Caliber 3235 movement with Chronergy escapement and blue Parachrom balance wheel, ensuring chronometric precision of -2 to +2 seconds per day. The Twinlock crown maintains water resistance to 100 meters. The 21mm lug width is proportioned to the 41mm case and requires precise fit to avoid friction and play. Material selection—alligator leather, crust calf, or shell cordovan—affects the overall chromatic perception of the bimetallic design.

Frequently asked questions

What is the lug width of the Rolex Datejust 41 126331-0016?

The Rolex Datejust 41 with reference 126331-0016 features a 21mm lug width. This measurement is the standard for 41mm cases and is critical for proper strap installation. Precise measurement between the internal lug attachments ensures perfect compatibility.

Which strap is recommended for the bimetallic Datejust 41?

For a Datejust 41 in Everose and stainless steel, black or dark brown alligator is the canonical choice. An elegant alternative is shell cordovan in cognac tone, which naturally dialogues with rose gold. Crust calf leather permits bolder chromatic interplay. Vulcanised rubber remains ideal for casual wear without style compromise.

How do you change the strap on a Rolex Datejust 41?

Strap replacement requires a specialised spring bar tool. Position yourself at the rear of the case, locate the spring bar mechanism, gently depress the tool to release the spring bar, extract it and repeat on the opposite side. Install the new strap by reversing the procedure. We recommend this operation by an expert if inexperienced, to avoid case scratches.

Is an aftermarket strap compatible with the 126331-0016?

Yes, any strap with a 21mm lug width is compatible with the Datejust 41 126331-0016. However, it is essential to verify the exact width: a deviation of 0.5mm generates friction and accelerated wear. A bespoke strap from an artisan guarantees precise geometry and controlled materials, preventing case damage.

How long does a leather strap last on a watch like the Datejust 41?

A quality alligator strap, with average daily wear, lasts 3-5 years before requiring maintenance or replacement. Shell cordovan, being more durable, extends to 5-7 years. Durability depends on exposure to humidity, perspiration and temperature fluctuations. Regular maintenance (cleaning and leather conditioning) significantly extends strap lifespan.

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