Rolex · Datejust 36
Strap for Datejust 36 Stainless Steel / Fluted / Blue-Diamond / Oyster
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 Datejust 36 126234-0038
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 Datejust 36 126234-0038, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Datejust 36 126234-0038?
The lug width of the Rolex Datejust 36 126234-0038 is 20 millimetres. This measurement represents the distance between the two horizontal pins where the strap attaches to the case. It is essential to verify this measurement to the nearest tenth of a millimetre to ensure correct strap fitting and optimal mechanical security.
Which strap do you recommend for the Rolex Datejust 36 126234-0038?
For the 126234-0038 in white gold and steel, we recommend dark brown alligator (noisette), which dialogues naturally with gold while maintaining formality; white or cream calf leather for minimalist aesthetics; burgundy shell cordovan for those seeking chromatic warmth; black rubber for daily versatility. Your choice depends on primary use and personal colour palette. All these materials, with a 20mm lug width, pair perfectly with the model.
How do I change the strap on my Rolex Datejust 36?
To change the strap, obtain a spring bar tool (small flat steel instrument). Position the watch on a soft surface. Insert the tool into the lateral opening of the pin and apply gentle downward pressure to disengage the pin from its seat. Repeat on the other side. Thread the new pins through the 20mm strap, then insert them into the case lugs with gentle pressure until you feel the click. Do not force: a correctly mounted pin should not move.
Is a 20mm aftermarket strap compatible with the 126234-0038?
Yes, any aftermarket strap with an exact 20mm lug width is compatible with the Datejust 36 126234-0038, provided the pins used are standard (1.45mm diameter, approximately 2.1mm length). An Italian artisanal strap in alligator, calf or shell cordovan offers construction quality equal to or exceeding industrial products, with personalisation options and a patina that improves over time.
How long does a leather strap last on a watch like the Datejust 36?
Leather strap durability depends on material, use and maintenance. Alligator and shell cordovan, if treated with hydrating cream every 6–8 months, last 5–8 years; vegetable-tanned calf lasts 3–5 years with daily use. Prolonged exposure to sunlight, humidity and perspiration accelerates ageing. An artisanal strap, if cared for, develops a noble patina. When the strap shows cracking or loss of elasticity, replacement is due.
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

