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 width
Straps for the Day-Date 36 118206-0118
Selected for the 20 mm lug width · workshop selection
Matte Dark Gray Alligator Strap€195
Black Alligator Strap with Light Red Edging€149
Vintage Alligator Strap Cognac€195
Hammered Pink Strap with Ecru Stitching€98
Vintage Brown Calfskin Strap — Natural Patina€98
The Day-Date 36 118206-0118, seen from the bench
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

