Rolex · Datejust 36
Strap for Datejust 36 Rolesor Yellow Domed / Oyster / MOP
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 116203-0189
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 116203-0189, seen from the bench
Frequently asked questions
What is the exact lug width of the Rolex Datejust 36 116203-0189?
The lug width of the Rolex Datejust 36 116203-0189 is 20 millimetres. This measurement represents the internal distance between the case lugs and is critical for selecting a compatible strap. A 20 mm lug width requires straps with shoulders between 19.8 and 20.2 mm to ensure precise fitment and eliminate lateral play.
Which type of strap is most suitable for the Rolex Datejust 36 with a mother-of-pearl dial?
For this Datejust 36 116203-0189, alligator leather in vegetable tanning is the classical choice: the delicate grain naturally complements the iridescent qualities of the mother-of-pearl dial. Alternatively, vegetable-tanned shell cordovan offers visual density and develops a golden patina over time. Calf leather in vegetable tanning provides understated refinement. For those preferring sportiness, a dark blue canvas NATO strap accentuates the chromatic contrast of the mother-of-pearl.
How do you change the strap on a Rolex Datejust 36?
Strap replacement is accomplished by extracting the spring bars (metal pins connecting the strap to the case). Using a spring bar tool, apply lateral pressure to the pin to release one end, then remove the old strap. The new 20 mm lug width strap is inserted by aligning one side first, then compressing the opposite pin until a distinct click indicates secure locking. Avoid crude implements to prevent case scratching.
Is a high-quality aftermarket strap compatible with the Rolex Datejust 36 116203-0189?
Yes, provided it meets the 20 mm lug width specification and features straight or slightly convex lugs, depending on whether a standard bracelet or deployante clasp is used. A hand-crafted strap in premium alligator or vegetable-tanned leather delivers aesthetics and durability comparable to the original bracelet, with the advantage of customisation and seasonal versatility.
How long does a leather strap last on a Rolex Datejust 36?
Longevity depends on usage intensity, climate and maintenance practices. A high-quality alligator or shell cordovan strap withstands daily wear for 3-5 years before requiring refurbishment or replacement. Vegetable-tanned leather develops visible patina but improves aesthetically over time. Prolonged exposure to perspiration, salt water and direct UV accelerates deterioration. Periodic cleaning with a soft, damp cloth and storage away from direct light extend strap life by 12-18 months.
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

