Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel / Domed / Blue - Fluted / 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
Reference126200-0021
FamilyDatejust 36
MovementRolex caliber 3235 hours, minutes, seconds | date | chronometer
Year2021 - 2024
CaseStainless 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 126200-0021

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 126200-0021, seen from the bench

The Rolex Datejust 36 Stainless Steel 126200-0021 features a 36mm Oystersteel case housing the in-house caliber 3235 Chronometer movement with 70-hour power reserve and Paraflex shock-resistant hairspring. Introduced in 1945 as the first wristwatch with an automatic date window, the Datejust established an unmatched standard in the dress-sport segment. The watch features a Champagne dial with white gold applied indices, classic Mercedes hands, and a 2.5x Cyclops lens; the 20mm lug width accommodates precision straps on wrists measuring approximately 16-18 cm circumference.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 126200-0021?

The lug width of the Rolex Datejust 36 126200-0021 is precisely 20mm. This measurement refers to the inner distance between the two case lugs where the strap attaches. It is a historical design specification of the Datejust: sufficiently wide to accommodate high-quality artisanal straps without structural compromise, yet contained enough to maintain elegant proportions on the 36mm case.

Which strap is recommended for the Datejust 36 126200-0021?

For the Datejust 36 126200-0021, alligator remains the reference choice: the belly scales offer regular, sophisticated grain with patina that improves over years. Alternatively, vegetable-tanned calf ensures softness and authentically Italian rich patina development. Shell cordovan, when available, offers unmatched density and durability. For sport-casual use, canvas or leather NATO transforms the Datejust into a versatile tool without sacrificing elegance.

How do you change the strap on the Rolex Datejust 36 126200-0021?

The Datejust 36 126200-0021 uses fixed lug system. To change the strap: remove the watch, place it on a soft surface, locate the spring bars securing the strap to the lugs, use a dedicated spring bar tool to gently push the bar sideways, extract the strap. Reverse the procedure to install the new strap. It is recommended to consult a professional to avoid scratching the case.

Is an aftermarket strap compatible with the Datejust 36 126200-0021?

Yes, any strap with 20mm lug width is compatible with the Datejust 36 126200-0021. Essential verifications: 1) lug width is exactly 20mm; 2) total length provides 4-5 adjustment positions (approximately 75-80mm from buckle to first hole); 3) the artisanal strap is crafted from noble materials (alligator, calf, shell cordovan) befitting the watch's value and prestige.

How long does a natural leather strap last on the Rolex Datejust 36 126200-0021?

Natural leather strap longevity depends on usage, maintenance, and construction quality. An alligator or shell cordovan strap, traditionally tanned, withstands 5-8 years with daily wear; vegetable-tanned calf, being softer, requires greater care and lasts 3-5 years. Casati Milano's artisanal warranty covers 18 months against manufacturing defects. To extend lifespan: avoid excessive water exposure, apply natural leather balm every 6 months, rotate among multiple straps to distribute wear.

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