Rolex · Day-Date 36
Strap for Day-Date 36 Everose Gold - Fluted / MOP - Baguette / President
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 128235-0078
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 128235-0078, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Day-Date 36 128235-0078?
The lug width of the Rolex Day-Date 36 128235-0078 is 20 millimetres. This measurement defines the space between the case lugs where the strap is inserted. It is essential to verify that the chosen strap has a compatible lug width between 19.5 and 20.2 millimetres to ensure a fit without lateral oscillation.
Which strap should I choose for the Rolex Day-Date 36 128235-0078?
For the Day-Date 36 128235-0078 in rose gold, the most stylistically coherent strap is alligator in dark brown, cognac, or black. Alligator preserves the dress watch elegance of the timepiece and develops a natural patina over time. Alternatively, shell cordovan offers a homogeneous texture and increased structural rigidity. For daily versatility, natural calf leather with hybrid deployant provides balanced compromise.
How do I change the strap on a Rolex Day-Date 36?
Changing the strap on a Rolex Day-Date 36 requires a specific tool called a spring bar tool. With the case positioned face-up, insert the fine tip of the tool into the rear slot of the attachment lug, gently release the spring, and slide out the old strap; then insert the new strap ensuring the lug spring clicks fully into position. It is recommended to perform this operation on a padded surface (mousepad or soft cloth) to avoid scratches.
Is the Day-Date 36 128235-0078 strap compatible with other Rolex models?
No. The Day-Date 36 with its 20mm lug width is specific to this model and its family. A 20mm strap is not compatible with models such as the Submariner, Explorer, or GMT-Master. Always verify manually the lug width of your specific watch before ordering a replacement strap.
How long does a leather strap last on a Rolex Day-Date 36?
The lifespan of a leather strap depends on the tanning method, frequency of use, and environmental conditions. A quality alligator strap subjected to moderate wear (worn 4-5 days per week) typically lasts between 4 and 7 years before requiring replacement. Shell cordovan tends to last longer due to its structural density. Direct exposure to sunlight, water, and temperature fluctuations accelerates leather ageing. Casati Milano provides 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

