Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel / Fluted / White Roman / Oyster

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
Reference126234-0026
FamilyDatejust 36
MovementRolex caliber 3235 hours, minutes, seconds | date | chronometer
Year2019
CaseWhite 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

All Rolex spring barsOpen →

Straps for the Datejust 36 126234-0026

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Datejust 36 126234-0026, seen from the bench

The Rolex Datejust 36 reference 126234-0026 is a two-tone watch combining white gold and stainless steel, with a 36 mm case diameter and Rolex caliber 3235 movement certified COSC Chronometer. The dial features a champagne solarium finish with silver date window, while the fixed bezel is white gold with a dark blue ceramic insert. The 20 mm lug width is the standard measurement for 36 mm Datejust models, defining the maximum strap width to avoid misalignment with the case. The caliber 3235 delivers 70 hours of power reserve and incorporates the Chronergy escapement system for improved precision to ±2 seconds per day.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 126234-0026?

The lug width of the Rolex Datejust 36 126234-0026 is 20 millimetres. This measurement corresponds to the distance between the two inner points of the lugs and determines the maximum width that the strap can possess. Measure with a caliper between the inner shoulders of the lugs to verify this parameter before ordering your strap.

Which strap is recommended for the Rolex Datejust 36 bimetallic watch?

For the 126234-0026 we recommend straps in alligator with vegetable tanning (medium brown, tobacco, mahogany), cream or black calf, or burgundy shell cordovan. Avoid synthetic leathers and low-quality rubber: the Datejust deserves high material coherence. If you prefer sporting versatility, raw canvas NATO straps with stainless-steel buckles are an appropriate choice.

How do I change the strap on my Rolex Datejust 36?

The Rolex Datejust 36 uses standard 1.8mm spring bars. Use a spring bar tool to press the small internal spring button and withdraw the bar from the lug seat. Insert the new bar into the strap, align and reinsert into the opposite lug. If you are inexperienced, consult a professional: improper pressure can damage the lugs.

Can I use an aftermarket compatible strap on my 126234-0026?

Yes, provided the strap is specifically dimensioned for 20mm lug width. Milanostraps offers artisanal straps in alligator, calf and cordovan certified for this measurement. All straps specify the lug width in the product descriptions. Always verify this dimension before purchase.

How long does a natural leather strap last on a Rolex Datejust?

Durability depends on the material and type of tanning. High-quality vegetable-tanned alligator lasts 3–5 years with daily wear. Calf resists 2–4 years. Shell cordovan, being denser, can exceed 5 years. Ageing develops natural patina. Regular maintenance (gentle cleaning, protection from excessive moisture) extends strap life.

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