Rolex · Day-Date 36
Strap for Day-Date 36 Yellow Gold / Diamond / MOP-Diamond / President-Diamond
The Day-Date 36 Yellow Gold / Diamond / MOP-Diamond / President-Diamond 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-0019
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-0019, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Day-Date 36 128348RBR-0019?
The lug width of the Rolex Day-Date 36 128348RBR-0019 is 20 millimetres. This measurement represents the distance between the two lugs of the case where the strap or bracelet is attached via spring bars. It is essential to purchase straps specifically designed for this width to prevent unwanted play.
Which strap is most recommended for the Rolex Day-Date 36 128348RBR-0019 in yellow gold?
Alligator leather with vegetable tanning represents the ideal aesthetic solution for this model. The characteristic grain of the leather creates a direct visual reference with the yellow gold case, and vegetable tanning develops a natural patina over time. Excellent alternatives include vegetable-tanned calf leather for a more contemporary interpretation, or shell cordovan for superior wear resistance and tactile dialogue with the metal.
How do you change the strap on a Rolex Day-Date 36?
Strap replacement requires a specialised spring bar tool for removal. Position the watch on a stable surface, locate the small hole on the inside of the lug, and use a spring bar removal tool for leverage. The bars are extracted gently and the old strap removed. The new strap is aligned with the holes, and the spring bars are reinserted with gradual pressure until the click of engagement.
Is an aftermarket strap compatible with the Rolex Day-Date 36 128348RBR-0019?
Yes, any strap designed for 20mm lug width is compatible with the Day-Date 36 128348RBR-0019. It is essential to verify that the strap has been manufactured with precise tolerances (±0.5 mm), as universal straps with poor tolerance can cause unwanted play on the case. Specialised artisanal strap manufacturers often offer construction quality that surpasses standard aftermarket bracelets.
How long does a leather strap last on a Rolex Day-Date 36?
Durability depends on material and usage. A quality vegetable-tanned alligator strap typically lasts 3-5 years with regular maintenance (cleaning, drying after moisture exposure). Shell cordovan, being more wear-resistant, can last 5-7 years. Leather should not remain wet for prolonged periods and should avoid continuous direct sunlight. Leading artisans offer warranties on manufacturing defects (typically 18 months) and affordable spring bar replacement services.
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
Bespoke straps for Rolex, in the atelier or by video call: casatimilano.com

