Rolex · Daytona

Strap for Rolex Daytona 116598RBOW

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
Reference116598RBOW
FamilyDaytona
MovementRolex caliber 4130 hours, minutes, small seconds | Chronograph, column wheel | chronometer

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 116598RBOW

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Daytona 116598RBOW, seen from the bench

The Daytona reference 116598RBOW features the automatic Rolex caliber 4130 with chronograph function and column wheel. The 40mm case is crafted in yellow gold with 20mm lugs. The movement offers hours, minutes, small seconds and chronograph indication, with chronometer certification.

Frequently asked questions

What is the lug width of the Rolex Daytona 116598RBOW?

The Rolex Daytona 116598RBOW features a lug width of 20 millimetres. This measurement is standard across modern Daytona references and represents the distance between the two lugs where the strap attaches. A compatible strap must have spring bars that fit precisely into 20 mm lugs, with tolerances held to exacting standards to ensure perfect seating.

Which strap is recommended for the Daytona 116598RBOW?

For the Daytona Rainbow, an alligator strap in cognac, dark brown, or black is highly recommended. Alligator combines aesthetic sophistication with lasting comfort. Alternatively, black shell cordovan develops a unique patina that ennobles with age, whilst a vegetable-tanned calf leather ensures softness and breathability. Your choice depends on intended use: formal, daily wear, or sporty applications.

How do you change the strap on a Rolex Daytona?

The strap on a Daytona 116598RBOW is changed by removing the two spring bars using a dedicated spring bar tool with flat tips. You must gently press against the internal spring to release the pins. To prevent any risk of scratching the case, it is advisable to consult a professional or specialised service such as Casati Milano, which supervises each stage of assembly.

Is an aftermarket strap compatible with the 116598RBOW?

Yes, any strap with a 20 mm lug width is compatible with the Daytona 116598RBOW, provided the spring bars meet the strict tolerances of the Rolex case. Bespoke leather straps produced by artisans like Casati Milano guarantee watchmaking quality and longevity, often exceeding original Rolex straps in flexibility and patina development.

How long does a leather strap last on a Daytona?

A premium leather strap on a daily-worn timepiece typically lasts 3–5 years before visible wear becomes apparent. With vegetable tanning, shell cordovan can reach 7–10 years, developing a patina that increases its appeal. Alligator, owing to its scaled structure, is exceptionally durable and can exceed 10 years under normal conditions. Casati Milano provides 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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Casati Milano · Via XX Settembre 15, Milan · by appointment only