Rolex · Day-Date 36
Strap for Day-Date 36 Everose / Strap / Chocolate
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 118135-0020
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 118135-0020, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Day-Date 36 reference 118135-0020?
The lug width (also called <a href="https://milanostraps.it/pages/termine-glossario/misura-ansa">ansa width</a>) of the Rolex Day-Date 36 reference 118135-0020 is 20 millimetres. This measurement is taken between the two spring bars that connect the strap to the case lugs. It is essential to verify this specification before purchasing any aftermarket strap to ensure complete compatibility with your timepiece.
Which strap material is best suited to the Rolex Day-Date 36 118135-0020 in rose gold?
For the Day-Date 36 in rose gold, we recommend three technically superior options: an <a href="https://milanostraps.it/pages/termine-glossario/alligatore">alligator</a> leather strap in cognac or espresso tone, which respects the presidential aesthetic with natural grain texture and a patina that improves over years; a vegetable-tanned calfskin with <a href="https://milanostraps.it/pages/termine-glossario/concia-vegetale">vegetable tanning</a>, offering softer hand-feel and superior light diffusion; or an FKM rubber strap, a contemporary choice that sacrifices tactile warmth for absolute durability in extended formal environments.
How do you change the strap on a Rolex Day-Date 36 118135-0020?
Changing the strap on a Day-Date 36 requires two principal tools: a spring bar tool (prying lever) in stainless steel and a protected work surface, preferably microfibre cloth to prevent case scratches. Locate the spring bars at both strap ends: insert the tool's point into the small hole beneath each spring bar, press gently upward until the bar retracts, then remove the strap from the lugs. Position the new strap, aligning its holes with the spring bars, and press down until you hear an audible click confirming proper seating. Always verify complete insertion. If uncertain, consult a professional watchmaker: improper installation risks damaging the strap or losing the case itself.
Is an aftermarket strap truly compatible with the Rolex Day-Date 36 118135-0020?
Yes, provided the strap is specifically manufactured for 20-millimetre lug width and presents a tapered attachment width compatible with Rolex case geometry. A bespoke artisanal strap crafted from premium leathers such as <a href="https://milanostraps.it/pages/termine-glossario/alligatore">alligator</a> or <a href="https://milanostraps.it/pages/termine-glossario/shell-cordovan">shell cordovan</a> is not merely compatible—it elevates the entire aesthetic experience of your timepiece. Avoid synthetic leathers or undersized straps: the objective is an pairing that honours the rose gold case's inherent elegance.
How long will a leather strap last on my Rolex Day-Date 36 118135-0020?
Leather strap longevity depends on three variables: frequency of wear, leather composition (alligator: 5–7 years; calfskin: 3–4 years; shell cordovan: up to 10 years), and climate environment (humidity accelerates ageing). A Day-Date worn daily in formal settings will retain its strap in excellent condition for 3–5 years before mild creasing appears at the wrist flex point. Artisanal straps constructed from premium leathers develop a desirable patina that enhances aesthetic value over time. We recommend rotating between at least two straps to extend useful life, and applying natural leather conditioner every six months to preserve fibre elasticity.
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

