Rolex · Day-Date 36
Strap for Day-Date 36 Yellow Gold Diamonds / President Diamonds / Bull's Eye
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 118388-0128
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 118388-0128, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Day-Date 36 118388-0128?
The Rolex Day-Date 36 118388-0128 has a lug width of 20 mm, measured between the inner walls of the lugs. This is the key measurement required when selecting any compatible aftermarket strap.
What is the best strap for the Rolex Day-Date 36 118388-0128?
For the Day-Date 36 118388-0128 in yellow gold, a hornback alligator strap in black or midnight blue paired with a gold-tone deployant clasp is the most technically coherent choice for the watch's aesthetic register. Shell cordovan in burgundy is an equally refined alternative, developing a warm patina that complements yellow gold over time.
How do you change the strap on a Rolex Day-Date 36 118388-0128?
Replacing the strap on the Day-Date 36 118388-0128 requires a double-headed springbar tool to release the spring bars from the lugs. Given the solid 18-carat yellow gold construction, using a tool fitted with a nylon tip guard is strongly recommended to prevent scratches on the polished surfaces. The operation can be carried out independently with care, or entrusted to a watchmaker or the Casati Milano atelier.
Are there aftermarket straps compatible with the Rolex Day-Date 36 118388-0128?
Yes. Any strap with a 20 mm attachment width is technically compatible with the Day-Date 36 118388-0128. For yellow gold lugs with a slightly curved profile, straps with straight or gently tapered ends are preferred for a proper fit. Milanostraps.it offers a curated selection of handcrafted 20 mm straps in alligator, vegetable-tanned calf and shell cordovan, all compatible with this reference.
How long does a leather strap last on a Rolex Day-Date 36 118388-0128?
The longevity of a leather strap depends on the tanning quality, daily care and exposure to moisture and perspiration. A high-quality alligator or shell cordovan strap, worn regularly and kept away from water, will retain its structural and aesthetic qualities for 3 to 5 years. Casati Milano's artisan straps carry an 18-month warranty against manufacturing defects.
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

