Rolex · Datejust 36

Strap for Datejust 36 Rolesor Yellow Domed / Oyster / Champagne Diamonds

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
Reference116203-0130
FamilyDatejust 36
MovementRolex caliber 3135 hours, minutes, seconds | chronometer
Year2018
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 116203-0130

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 116203-0130, seen from the bench

The Datejust was introduced in 1945 as the first self-winding wristwatch with instantaneous date. It features the automatic Calibre 3135 with official chronometer certification. The 116203-0130 reference has a 36mm case with 20mm lugs.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116203-0130?

The lug width of the Rolex Datejust 36 116203-0130 is precisely 20mm. This dimension is standard across all 36mm Datejust models, regardless of case material (steel, gold, or two-tone). Always measure the distance between the inner attachments with a calliper to ensure perfect strap compatibility.

Which strap material is most suitable for the two-tone Datejust 36?

For the Datejust 36 in steel and yellow gold, the finest materials are alligator, premium vegetable-tanned calf leather, and shell cordovan. Alligator emphasizes the reflected light from the case metals, whilst mahogany brown calf creates natural chromatic harmony. Shell cordovan develops an extraordinary patina over time, ideal for those seeking authenticity.

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

Use a spring bar tool to gently remove the elastic pins securing the strap to the lugs. Rest the strap on a soft surface to avoid scratches. Align the new strap with the lug ends and secure the pins until they click into place. Never force: if you encounter resistance, verify that the strap width is correct (20mm).

Is a Casati Milano aftermarket strap compatible with the 116203-0130?

Yes. Any artisanal strap crafted to 20mm width is perfectly compatible with the Datejust 36 116203-0130. Casati Milano produces bespoke leather straps with standard or customised deployante clasps. We recommend direct consultation at the Milan atelier to select the ideal material, colour, and finish.

How long does an artisanal leather strap last on a Datejust?

An artisanal quality leather strap on a daily-worn Rolex typically lasts between 3 and 7 years, depending on the tanning method, usage, and maintenance. Vegetable-tanned leather tends to age better while maintaining elasticity, whilst alligator offers greater wear resistance. Casati Milano guarantees 18 months against manufacturing defects and recommends rotating supplementary straps to extend service 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