Rolex · Datejust 36

Strap for Datejust 36 Rolesor Yellow Diamond / Jubilee / Steel Diamond

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
Reference116243-0023
FamilyDatejust 36
MovementRolex caliber 3135 Hours, Minutes, Seconds | Chronometer
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 116243-0023

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 116243-0023, seen from the bench

The Datejust 36 reference 116243-0023 is powered by the automatic caliber 3135 with chronometer certification. It features hour, minute and second hands with date indication. The 36mm case is paired with 20mm lugs.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116243-0023?

The Rolex Datejust 36 116243-0023 is equipped with 20-millimetre lugs. This dimension is specific to this model and must be observed precisely when purchasing a compatible strap. 19mm or 22mm straps will not fit correctly, causing excessive movement or inability to seat in the case pins.

Which strap pairs best with the Rolex Datejust 36 116243-0023?

The ideal strap depends on intended use. For formal contexts, a dark brown alligator or vegetable-tanned calfskin box strap enhances the two-tone gold and steel aesthetic. For daily wear, polished shell cordovan or cognac-toned calfskin creates visual balance. Those seeking versatility opt for a two-tone calfskin and canvas strap, or a resilient canvas NATO.

How do you change the strap on the Rolex Datejust 36 116243-0023?

Strap replacement requires two tools: a flathead screwdriver (or dedicated tool) and gentle outward pressure. Position the watch with the lug facing you, insert the tool into the pin groove and press gently outward until the metal axis fully retracts. Repeat on the opposite side. Insert the pins into the new strap and seat the first axis, then the second. If inexperienced, consult a certified watchmaker.

Is an aftermarket strap compatible with the Rolex Datejust 36 116243-0023?

Yes, provided the lug width is precisely 20mm. Quality aftermarket straps, such as those crafted in alligator or calfskin, seat into original Rolex pins without modification. Many collectors favour custom straps from specialised ateliers because they allow complete personalisation—from material to buckle finish.

How long does a leather strap last on the Rolex Datejust 36 116243-0023?

Longevity depends on material and use. Vegetable-tanned alligator lasts 4–6 years with daily wear, developing natural patina. Box calfskin may reach 5–7 years. Shell cordovan, owing to structural density, lasts 6–8 years. These periods extend significantly if the watch is worn intermittently or rotated with other straps. Artisanal quality and natural tanning always guarantee superior longevity compared to industrial straps.

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