Rolex · Daytona

Strap for Cosmograph Daytona Everose / Pink - Baguette

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference116505-0017 (aka: m116505-0017)
FamilyDaytona
MovementRolex caliber 4130 hours, minutes, small seconds | Chronograph, column wheel | chronometer
Year2021
CaseRose Gold

Recommended spring bar

Spring bars Rolex Daytona 116520 — 20mm steel

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm · closed lugs

All Rolex spring barsOpen →

Straps for the Daytona 116505-0017 (aka: m116505-0017)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Daytona 116505-0017 (aka: m116505-0017), seen from the bench

The Daytona was introduced in 1963 as a sporty chronograph dedicated to motorsports enthusiasts. The reference 116505-0017 is equipped with the automatic caliber 4130 with chronograph and column-wheel function, officially certified as a chronometer. The watch features 20mm lugs and offers hour, minute, small seconds and chronograph indications.

Frequently asked questions

What is the lug width of the Rolex Daytona 116505-0017?

The lug width of the Rolex Daytona 116505-0017 is precisely 20mm. This dimension—measured from spring bar to spring bar—has been the standard for the Daytona since 2000. It is essential to ensure that any replacement strap adheres to this measurement with precision: even a 1mm deviation causes abnormal pressure on the case and accelerates wear at the lugs.

Which strap material is best suited for the Daytona 116505-0017?

Alligator leather represents the choice most coherent with the sporting and luxurious nature of this chronograph. The natural texture of the leather dialogues visually with the brushed finish of the Everose case, and superior-quality alligator resists between 5 and 7 years of daily wear. Alternatively, shell cordovan offers exceptional fibre density for intensive use, whilst calf leather develops a natural patina that evolves over time.

How do you change the strap on a Rolex Daytona?

Strap replacement requires the use of a specialist tool (spring bar tool) to remove the elastic pins that secure the strap to the case lugs. The operation should be performed on a soft, well-lit surface to avoid scratches. If you lack experience, entrust the task to a certified watchmaker or to Casati Milano's service, which guarantees professional workmanship with calibrated instruments.

Is an aftermarket strap compatible with the Rolex Daytona 116505-0017?

Yes, provided the strap is manufactured with a 20mm lug width. Many high-quality aftermarket straps are specifically designed for the Daytona and offer construction performance comparable to original Rolex straps, at significantly lower cost. It is essential to purchase from reputable manufacturers who guarantee micrometric tolerances on the attachment points.

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

Longevity depends on the type of leather and intensity of use. Superior-quality alligator resists between 5 and 7 years with daily wear; shell cordovan can exceed 10 years due to its fibre density; traditional calf leather yields between 2 and 4 years before showing stress at the creases. Vegetable-tanned leather tends to last longer, as tannin confers greater fibre stability over time.

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