Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel / Yellow Gold / Diamond / MOP Diamond / 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
Reference126283RBR-0009
FamilyDatejust 36
MovementRolex caliber 3235 hours, minutes, seconds | date | chronometer
Year2018
CaseMother of Pearl | Yellow 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 126283RBR-0009

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 126283RBR-0009, seen from the bench

The Datejust represents one of Rolex's historic models, introduced in 1945 as the first self-winding wristwatch with an instantaneous date display. It mounts the automatic caliber 3235 with chronometer certification, offering hour, minute, second and date functions. The case features 20mm lugs and maintains the classic 36mm format proportions.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 126283RBR-0009?

The lug width of the Rolex Datejust 36 126283RBR-0009 is 20 millimetres. This dimension corresponds to the distance between the two attachment pins of the case and represents the standard construction specification for this model. A compatible strap must measure exactly 20 mm to ensure perfect alignment with the case lugs, avoiding mechanical stress on the attachment pins.

Which strap material is most suitable for the Datejust 36 126283RBR-0009?

Alligator leather represents the optimal choice for this model. The fibrous structure of the skin offers natural flexibility perfectly suited to the micro-movements of the wrist, whilst the scale pattern dialogues beautifully with the iridescent mother-of-pearl dial. Alternatively, vegetable-tanned calf leather develops an elegant natural patina over time, or shell cordovan for those seeking superior material density and wear resistance.

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

Strap replacement requires specific tools: a strap remover or small cross-key. Position the watch with the case facing downward on a soft surface, locate the side attachment pins and gently push them inward using the appropriate tool. Once released, the pin slides out naturally. To install the new strap, insert the pin into the case lug, then push the strap until mechanical locking is achieved. A straightforward operation requiring patience and dedicated instruments.

Is a 20mm aftermarket strap compatible with the Datejust 36 126283RBR-0009?

Yes, a 20 mm aftermarket strap is fully compatible with the Datejust 36 126283RBR-0009, provided it respects the precise lug width specification. Casati Milano artisanal straps are crafted with construction tolerances that guarantee precise adaptation to Rolex attachment pins, maintaining geometric alignment and durability over time. Choosing quality aftermarket straps allows personalisation of the watch without compromising structural integrity or official warranty status.

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

The longevity of a leather strap depends on material quality and usage conditions. Premium alligator leather, with vegetable tannin, maintains functional elasticity for 3–4 years of daily wear, considering humidity exposure, temperature fluctuations and positional change frequency. Shell cordovan, thanks to superior material density, can reach 5–7 years of service. Casati Milano straps benefit from an 18-month warranty against manufacturing defects, whilst natural wear remains a physiological phenomenon. Proper maintenance—drying after humidity exposure, storage in temperate environments—significantly extends longevity.

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