Rolex · Datejust 36

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

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
Reference126234-0025
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

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Straps for the Datejust 36 126234-0025

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 126234-0025, seen from the bench

The Datejust represents one of Rolex's historic models, introduced in 1945 as the first self-winding watch with an instantaneously changing date display at midnight. Reference 126234-0025 features the automatic Caliber 3235 chronometer-certified movement, equipped with hour, minute, second and date functions. 36mm case with 20mm lugs, powered by a movement that provides approximately 70 hours of power reserve.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 126234-0025?

The lug width of the Rolex Datejust 36 126234-0025 is 20mm. This measurement represents the perpendicular distance between the two lugs of the case where the strap attaches. It is essential to verify this dimension before purchasing an aftermarket strap, as an strap with incorrect lug width will not be compatible with the case.

What is the best strap for the Datejust 36 126234-0025?

The optimal strap depends on intended usage and personal preferences. For formal occasions, we recommend a French alligator or vegetable-tanned calf leather that emphasises the two-tone gold and steel case. For casual contexts, a NATO strap or vulcanised rubber provides practicality. Shell cordovan represents the ideal compromise between elegance and water resistance, perfect for those seeking versatility.

How do you change the strap on the Rolex Datejust 36 126234-0025?

The strap on the Datejust 36 126234-0025 is removed by operating the spring bar pins that connect the case lugs to the strap. Using a dedicated tool (spring bar removal tool), compress the spring bar inward to release the pin from one lug, repeating the operation on the opposite lug. Installation of the new strap follows the reverse process. We recommend performing this operation with care to avoid scratching the case.

Is an aftermarket strap compatible with the Rolex Datejust 36 126234-0025?

Yes, any strap with a 20mm lug width is compatible with the Datejust 36 126234-0025. High-quality artisanal straps (such as those offered by milanostraps.it) respect original Rolex geometry and ensure precise fitting. Compatibility concerns exclusively the lug width; the case lugs themselves remain unaltered over time.

How long does a leather strap last on a Rolex Datejust 36?

The durability of a leather strap depends on material quality, frequency of use, and environmental conditions. Excellent-quality alligator or calf leather worked with vegetable tanning can last 3-5 years under moderate daily use conditions. Shell cordovan, due to its structural compactness, tends to last longer (5-7 years). Constant exposure to water, perspiration, and sunlight accelerates ageing. Artisanal straps from Casati Milano are protected by an 18-month warranty against manufacturing defects.

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