Rolex · Day-Date 36
Strap for Day-Date 36 Everose Fluted / President / Pink MOP Carousel
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 118235f-0109
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 118235f-0109, seen from the bench
Frequently asked questions
What is the exact lug width of the Rolex Day-Date 36 118235f-0109?
The lug width of the Rolex Day-Date 36 118235f-0109 is precisely 20 millimetres. This measurement is taken from the tip of the left lug to the tip of the right lug, perpendicular to the dial plane. It is critical to verify this dimension before purchasing an aftermarket strap, as an incorrect width will result in poor fit and potential stress on the lugs.
What strap material do you recommend for the Day-Date 36 in rose gold?
For the Day-Date 36 118235f-0109 in rose gold, we recommend vegetable-tanned alligator, Horween shell cordovan, or European calf leather. Alligator offers uniform scales that mirror the character of the case; shell cordovan develops an almost ceramic sheen; European calf provides suppleness that elegantly contrasts the weight of rose gold. Avoid synthetic leathers, which fail to dialogue chromatically with rose gold.
How do I change the strap on a Rolex Day-Date 36?
Changing the strap on a Day-Date 36 requires a quality watchmaking spring bar tool. Position the watch on a soft cloth to prevent scratching, insert the flat tip of the tool under the spring bar maintaining downward tension, and slide the strap from the buckle toward the exterior. For Rolex straps equipped with Oyster or deployant clasps, the procedure is identical. If uncertain, consult an authorised Rolex retailer.
Is an aftermarket strap compatible with the Rolex Day-Date 36 118235f-0109?
Yes, a 20-millimetre strap manufactured to standard watchmaking specifications is compatible with the 118235f-0109, provided the strap's internal lug width is exactly 20 millimetres and the strap terminus (whether standard spring bar or deployant) aligns with the case's buckle type. Artisanal leather straps of premium quality often provide greater aesthetic flexibility than original Rolex straps.
How long does a leather strap last on a watch worn daily?
A high-quality leather strap (alligator, shell cordovan, or European calf in vegetable tanning) typically lasts 4–6 years with daily wear, provided regular maintenance: avoid prolonged moisture, abrasive grime, and forced creasing. Vegetable-tanned leather develops pleasant patina but accumulates debris in pores; cleaning every 6–8 weeks with a damp cloth and neutral soap significantly extends service life. Humid or perspiration-prone environments may reduce durability to 2–3 years without proper care.
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

