Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel / Diamond / Blue-Diamond / 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
Reference126284RBR-0030
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 126284RBR-0030

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 126284RBR-0030, seen from the bench

The Rolex Datejust 36 126284RBR-0030 is a two-tone stainless steel and white gold watch with a 36 mm case diameter and 20 mm lug width. It features the Rolex 3235 automatic chronometer movement with a precision of +2/-2 seconds per day, a 70+ hour power reserve, and Perpetual Rotor technology. The watch includes a date window with Cyclops magnification, water resistance to 100 meters, and a Twinlock crown for reliability.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 126284RBR-0030?

The lug width of the Rolex Datejust 36 126284RBR-0030 is 20 millimetres. This dimension represents the space between the two suspension lugs on the case and is essential for selecting a compatible strap. An incorrectly sized strap will compromise wrist stability and case integrity. You can verify this measurement on the caseback, where Rolex engraves the specifications, or by measuring the distance between the lugs directly with a calliper.

Which strap is best suited for the Datejust 36 126284RBR-0030?

The ideal strap depends on intended use and aesthetic preference. For formal and business contexts, we recommend dark brown alligator or black vegetable-tanned calf leather, which accentuate the contrast between the white gold bezel and the steel case. For those seeking versatility and durability, cognac-coloured shell cordovan represents the finest choice: it develops natural patina and demonstrates exceptional resistance to wear. For an urban-sportive aesthetic, a rubber or NATO fabric strap keeps the Datejust 36 suitable for high-touch daily life. A white gold or steel deployant clasp integrates the sartorial statement.

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

The procedure requires two essential tools: a spring bar removal tool and a stable working surface. Position the watch on a soft cloth with the case facing upward. Locate the first suspension lug (12 o'clock side). Insert the tool tip into the space beneath the lug and press gently upward to release the internal spring. Extract the lug pin with a slight twisting motion. Repeat for the second lug. Align the holes of the new strap with the lugs, insert the first pin, press downward until the click engages, then repeat for the second. If you prefer to avoid risk, entrust the procedure to an authorised Rolex service centre or the Casati Milano atelier.

Is an aftermarket strap compatible with the 126284RBR-0030?

Yes, provided the strap strictly respects the 20-millimetre lug width and the internal diameter of the deployant or clasp corresponds to Rolex specifications (standard 18-20mm depending on attachment type). Artisanal aftermarket straps—such as dyed alligator, vegetable-tanned calf or shell cordovan—offer aesthetic versatility without constructive compromises. Always verify that the material and finish of the clasp/deployant are compatible with the case metals (white gold and 904L steel).

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

Durability depends on material, usage and maintenance. A quality artisanal alligator strap lasts approximately 3-5 years with daily wear; shell cordovan can exceed 5-7 years owing to superior crystalline density; traditional vegetable-tanned calf requires greater care and typically lasts 2-4 years. To extend serviceable life: avoid direct, prolonged sunlight exposure, preserve the strap in a dry environment, apply leather-specific creams (not silicone) every 3-4 months. A rubber or NATO fabric strap offers superior durability (5-8 years) but sacrifices aesthetic refinement. Casati Milano provides an 18-month warranty covering manufacturing defects on all personalised 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