Rolex · Datejust 36

Strap for Rolex Datejust 36 126234

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
FamilyDatejust 36
MovementRolex caliber 3235 Hours, Minutes, Seconds | Date | Chronometer

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 126234

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 126234, seen from the bench

The Datejust 36 reference 126234 features a 36mm stainless steel case with a white gold bezel. It is powered by the automatic Calibre 3235 with chronometer certification, providing hour, minute, second and date indications. The 20mm lugs complete the technical configuration of this timepiece.

Frequently asked questions

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

The lug width of the Rolex Datejust 36 ref. 126234 is exactly 20 millimetres. This measurement is specific to the Datejust in the 36mm case and is essential for selecting an aftermarket strap. A strap of different width (18mm or 22mm) would not guarantee correct alignment with the case lugs.

What strap materials are recommended for the Datejust 36 126234?

For the 126234, genuine alligator leather is recommended for formal elegance and natural patina development, vegetable-tanned calf leather for a balance between tradition and practicality, shell cordovan for exceptional durability beyond a decade, and NATO straps for versatility and easy changing. The choice depends on daily use and desired aesthetic context.

How do you change the strap on a Rolex Datejust 36?

To change the strap on a Datejust 36, you need a specialised tool called a spring bar tool (or pin remover). This instrument has two thin tips that insert into the lateral holes beneath the lugs (spring bar). Once the spring is loosened, the pin slides out of its seat and the strap can be removed. The operation is straightforward but requires precision to avoid scratching the case. Many watchmakers perform this service free of charge or for a minimal fee.

Is the Datejust 126234 compatible with quality aftermarket straps?

Yes, the Datejust 36 126234 is fully compatible with quality aftermarket straps, provided the lug width is 20 millimetres. Specialist brands such as Casati Milano produce bespoke artisan straps that meet the same quality standard as the original Rolex bracelet, with the option to customise material, colour and finishing.

How long does a leather strap last on a daily-wear watch like the Datejust?

The lifespan of a leather strap depends on the material and usage patterns. Quality calf leather typically lasts 3-5 years with daily wear. Shell cordovan can exceed 10 years thanks to its natural density. Alligator leather falls between 5-7 years. Factors such as humidity, sun exposure and regular maintenance significantly influence longevity. Leather straps with vegetable tanning also develop an aesthetic patina that increases their perceived value 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