Rolex · Daytona

Strap for Rolex Daytona 116506

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
Reference116506
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

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Straps for the Daytona 116506

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Daytona 116506, seen from the bench

The Daytona reference 116506 features a 40mm platinum case with 20mm lugs. It is powered by the Rolex 4130 automatic caliber with column-wheel chronograph functions and chronometer certification. The movement offers hours, minutes, small seconds and chronograph indication.

Frequently asked questions

What is the lug width of the Rolex Daytona ref. 116506?

The Rolex Daytona 116506 features a 20-millimetre lug width. This dimension is specific to modern Daytona models and reflects the proportions of the 40 mm case. Measurement is taken with callipers between the two spring bar pins that connect the strap to the case. Precision is critical: even a fraction of a millimetre excess causes friction in the lug seat, while insufficient width creates destabilising play on the wrist.

What strap material is most suitable for the Rolex Daytona 116506 in platinum?

For the 116506 in platinum with ice-blue dial and Cerachrom maroon lunette, Nile alligator in deep brown tones represents the semantically authentic choice: it engages in chromatic dialogue with the lunette through fine pore texture and satin finishing. Alternatively, equine shell cordovan offers a more velvet-like and understated aesthetic, with a patina that refines with time. Italian calf provides versatile aesthetics, whilst technical NATO straps suit intensive use.

How do you change the strap on a Rolex Daytona 116506?

Strap change is accomplished by removing the two spring bar pins that link the lugs to the case. A spring bar tool is inserted into the small lateral holes of the lugs to compress the pins and extract them. The new strap, confirming exactly 20 mm lug width, is simply inserted by pressing the pins until engagement click. Operation should occur on a soft surface to prevent case scratching in platinum. Casati Milano performs this service with artisanal precision, manually measuring each strap before delivery.

Is an aftermarket strap truly compatible with the Rolex Daytona 116506?

An aftermarket strap is compatible only if its lug width measures exactly 20 mm and materials contain no elements capable of scratching the platinum case—such as unprotected metal buckles or abrasive stitching. Artisanal-quality straps manufactured with certified leather and protective finishes are entirely compatible and guarantee longevity. Casati Milano supplies 20 mm straps specifically engineered for the Daytona, with 18-month warranty against production defects, allowing personal leather selection in the Milan atelier.

What is the lifespan of a leather strap for the Rolex Daytona 116506?

A leather strap of artisanal quality, subjected to routine maintenance (regular cleaning and conditioning every 6–12 months), lasts between 4 and 7 years of daily use, dependent on intensity of wear and climatic conditions. Shell cordovan and Nile alligator, being noble leathers with densely interlaced fibres, maintain structure and elasticity longer than calf. The patina forming naturally over time is a desirable characteristic: it testifies to authentic use. A Casati Milano artisanal strap benefits from 18-month warranty against production defects, extensible through professional regeneration services.

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