Rolex · Day-Date 36

Strap for Day-Date 36 Platinum Domed / President / Paved

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

Lug width20 mm
Case diameter36 mm
Reference118206-0085
FamilyDay-Date 36
MovementRolex caliber 3155 hours, minutes, seconds | date, day | chronometer
CasePlatinum

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Straps for the Day-Date 36 118206-0085

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118206-0085, seen from the bench

The Rolex Day-Date 36 Platinum reference 118206-0085 features a platinum case of 36 mm diameter with a 20 mm lug width. Powered by the caliber 3155 automatic movement with annual calendar and day-date function, certified Chronometer. The watch combines classical proportions with platinum's distinctive white tonality and superior craftsmanship, representing the benchmark of conservative watchmaking excellence since 1956.

Frequently asked questions

What is the exact lug width of the Rolex Day-Date 36 reference 118206-0085?

The lug width of the Day-Date 36 model 118206-0085 is precisely 20 mm. This measurement indicates the distance between the two lugs on the case. To verify compatibility with any strap, this width must be measured exactly using a digital calliper. A 19 mm or 21 mm strap will not fit correctly, causing lateral play or mounting impossibility.

Which type of strap is most suitable for the platinum Day-Date 36?

For the Day-Date 36 in platinum, alligator (crocodile) represents the natural stylistic choice. Vegetable-tanned alligator develops a patina that evolves alongside the platinum finish, creating visual coherence over time. Alternatively, shell cordovan offers density and compactness that complements the rigorous construction of the 118206-0085 reference. Calf leather with matte finishes remains an elegant compromise. Avoid synthetics: platinum deserves material authenticity.

How do you change the strap on a Rolex Day-Date 36 with 20 mm lugs?

Strap replacement requires specific tools: a spring bar tool (double-pointed implement for spring bar lugs) and a clean, illuminated work surface. Position the watch face down, insert the spring bar tool tip along the lug edge, press toward the centre to release the spring, extract the lug and old strap, insert the new lug into the new strap, reposition the lug on the case by compressing the spring until it clicks. Never force: incorrect assembly permanently damages the lugs on gold or platinum cases.

Is it possible to fit an aftermarket strap on a Rolex Day-Date 36 118206-0085?

Yes, it is absolutely possible and lawful to fit a high-quality artisanal strap to a Day-Date 36 118206-0085, provided it respects the 20 mm lug width and is constructed from noble materials (alligator, cordovan, vegetable-tanned calf). A bespoke artisanal strap will often offer superior construction quality and customisation compared to original Rolex straps, whilst preserving the watch's integrity and beauty.

What is the average lifespan of a leather strap on a Rolex like the Day-Date 36?

A quality leather strap, made from alligator or shell cordovan with vegetable tanning, has an average lifespan of 8–12 years of daily wear, varying based on humidity, climate, frequency of use and personal care. Vegetable-tanned leather tends to patina and darken over time, guaranteeing longevity superior to synthetics. A well-maintained strap (cleaned regularly, not exposed to extreme climates) can reach 15 years. Standard artisanal warranty covers manufacturing defects for 18 months from receipt.

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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