Rolex · Day-Date 36

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

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
Reference118206-0118
FamilyDay-Date 36
MovementRolex caliber 3155 hours, minutes, seconds | date, day | chronometer
CasePlatinum

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Straps for the Day-Date 36 118206-0118

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118206-0118, seen from the bench

The Day-Date 36 118206-0118 is Rolex's contemporary interpretation of a 1956 masterpiece: the first wristwatch to simultaneously display date, day of the week, and time. The 36 mm platinum case houses the Caliber 3255, an in-house certified chronometer movement with 70 years of technical evolution, featuring Perpetual winding, rose gold gears, and 100-meter water resistance. The silvered sunburst dial showcases separate windows for date and day with instantaneous jump mechanism at midnight. The 20 mm lug width is specific to this Day-Date 36 generation.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 118206-0118?

The lug width is 20 millimetres (20 mm). This measurement is specific to the Day-Date 36 of this generation and determines compatibility with any strap, bracelet or band you wish to fit to the watch. Always verify that any strap you order is certified for 20mm lug width.

Which strap material is most suitable for a Rolex Day-Date 36 in platinum?

For a timepiece of this calibre in platinum, alligator leather represents the most coherent choice: the natural grain of alligator skin mirrors the rigorous geometry of polished and brushed platinum. Alternatively, vegetable-tanned calf leather offers a patina that evolves over time, creating a continuous tactile connection with the wrist. Shell cordovan remains a noble option for those who prefer less delicate yet equally prestigious leather.

How do I change the strap on a Rolex Day-Date 36 118206-0118?

The Day-Date 36 is fitted with straight lugs (standard spring bars). Use a dedicated strap removal tool — a spring bar tool — to gently compress the elastic fasteners that hold the lug in position. Carefully withdraw the lug from the case, then insert the new strap by aligning the lug holes with the case pins. Compress the fasteners again until fully seated. If unfamiliar with the process, consult a specialist watchmaker or Casati Milano's service.

Are aftermarket straps compatible with the Day-Date 36 118206-0118?

Yes, provided they are certified for 20mm lug width. On milanostraps.it you will find a collection of handcrafted straps in various materials — alligator, calf, shell cordovan, NATO, rubber — all constructed for this measurement. A custom-made strap additionally guarantees perfect fit between the case lug and strap width, avoiding lateral play or slipping.

How long does a leather strap last on a Rolex Day-Date 36?

Durability depends on material and usage. Well-maintained alligator can last 8-12 years; vegetable-tanned calf 6-10 years; shell cordovan 10-15 years due to its density. Frequency of wear, humidity, UV exposure and routine maintenance (gentle cleaning, drying, leather conditioning) directly impact longevity. A strap crafted from premium-grade leather with hand-stitching will outlast industrially produced alternatives.

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