Rolex · Datejust 36

Strap for Datejust 36 Rolesor Yellow Fluted / Oyster / Black Computer

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter36 mm
Reference116233-0189
FamilyDatejust 36
MovementRolex caliber 3135 hours, minutes, seconds | chronometer
Year2018
CaseYellow Gold, Stainless Steel

Recommended spring bar

Modern Rolex spring bars 20mm — 1.5mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm · closed lugs

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Straps for the Datejust 36 116233-0189

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 116233-0189, seen from the bench

The Datejust represents one of Rolex's historic models, introduced in 1945 as the first automatic watch with date indication. Reference 116233 mounts the automatic caliber 3135 with chronometer certification, offering indication of hours, minutes and seconds. 36mm case with 20mm lugs in a stainless steel and yellow gold configuration.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116233-0189?

The lug width (ansa width) of the Rolex Datejust 36 116233-0189 is 20mm. This measurement indicates the distance between the two lugs on the watch case where the strap attaches. It is the established standard for all modern Datejust 36 models and allows for a wide range of compatible straps in leather and other materials.

Which leather strap do you recommend for the Datejust 36 116233-0189?

For the Datejust 36 116233-0189 in yellow gold and stainless steel, we recommend alligator leather, calf with vegetable tanning, or shell cordovan. Alligator enhances the golden tone of the case and delivers formal elegance; vegetable-tanned calf develops a personal patina over time; cordovan offers inherent density and lustre as it ages. The choice depends on your usage context and personal preference.

How do you change the strap on a Datejust 36 116233-0189?

Changing the strap on a Datejust 36 116233-0189 requires a spring bar removal tool (a spring bar tool or fine pliers). Place the watch on a soft surface to prevent scratches. Insert the tool under the lugs of the case and gently press to release the internal spring of the spring bar (the pin holding the strap), then remove the old strap and insert the new one. This operation requires care and precision; if you are inexperienced, consult a professional watchmaker.

Is an aftermarket strap compatible with the Rolex Datejust 36 116233-0189?

Yes, provided the aftermarket strap has a 20mm lug width. Straps crafted by specialist artisans such as Casati Milano are fully compatible with the 116233-0189. We recommend always verifying the correct lug measurement and, if possible, seeking advice on colour pairings that will enhance the yellow gold and steel case.

How long does a leather strap last on a watch like the Datejust 36 116233-0189?

The lifespan of a leather strap depends on usage frequency and leather quality. A high-quality alligator or cordovan strap typically lasts 3–5 years with regular wear. Vegetable-tanned calf may last 2–3 years of intensive use before requiring maintenance (conditioning of the leather's natural oils). Casati Milano straps carry an 18-month warranty against manufacturing defects and can be refurbished and restored over time.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only