Rolex · Day-Date 36
Strap for Day-Date 36 Yellow Gold - Diamond / Bright Green - 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 128348RBR-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 128348RBR-0078, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Day-Date 36 128348RBR-0078?
The lug width of the Rolex Day-Date 36 128348RBR-0078 is 20 mm. This measurement, taken internally between the two lugs at the point where the strap meets the case back, is the definitive parameter for selecting any compatible replacement strap.
What is the best strap for the Rolex Day-Date 36 128348RBR-0078 in yellow gold?
For the Day-Date 36 in yellow gold, an alligator strap with vegetable tanning in tobacco, chocolate or bordeaux tones is the most coherent choice given the watch's formal register. Shell cordovan offers a premium alternative with superior wear resistance. For sporting or marine environments, vulcanised rubber provides reliability and comfort without compromising the overall aesthetic.
How do you change the strap on a Rolex Day-Date 36?
Changing the strap on a Rolex Day-Date 36 requires a fine-tipped spring bar tool. The spring bars have a standard diameter of 1.8 mm. Care must be taken to avoid scratching the yellow gold case: plastic jaw protectors and a cushioned watch holder are strongly recommended during the procedure.
Are there aftermarket straps compatible with the Rolex Day-Date 36 128348RBR-0078?
Yes. Any strap with a 20 mm lug end tapering to 16 or 18 mm is physically compatible with the Day-Date 36. Milanostraps.it offers a curated selection of handcrafted 20 mm straps in premium leather, with thicknesses and finishes calibrated for Oyster yellow gold lugs. The Casati Milano atelier also produces fully bespoke straps to order.
How long does a leather strap last on a Rolex Day-Date 36?
The lifespan of a leather strap depends on the material, frequency of use, and exposure to perspiration and moisture. A quality vegetable-tanned alligator strap, properly cared for and stored correctly, will retain its structural and aesthetic integrity for 3 to 5 years with regular use. Shell cordovan, owing to the density of its fibrous structure, can exceed 5 to 7 years. Regular exposure to water will significantly reduce these figures.
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

