Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel - Everose - Fluted / Chocolate / 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
Reference126231-0044
FamilyDatejust 36
MovementRolex caliber 3235 hours, minutes, seconds | date | chronometer
Year2023
CaseRose 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 126231-0044

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 126231-0044, seen from the bench

The Datejust represents one of Rolex's historic collections, characterized by the date function with instant midnight change. Reference 126231-0044 mounts the automatic 3235 caliber with official chronometer certification. It has 20mm lugs and provides hour, minute, second and date indication.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 126231-0044?

The lug width of the Rolex Datejust 36 Ref. 126231-0044 is 20 millimetres. This is the standard dimension for the 36 mm Datejust and represents the distance between the two lugs of the case where the strap is inserted. A compatible strap must measure exactly 20 mm, with a maximum tolerance of ±0.5 mm.

What strap do you recommend for the Datejust 36 126231-0044?

For the Datejust 36 in two-tone rose gold and stainless steel, we recommend a strap in alligator in black, cognac, or honey tones: it enhances the luxury nature of the case without competing visually. Elegant alternatives include vegetable-tanned calf in chestnut, burgundy, or black tones; natural shell cordovan for those seeking patina and density; natural rubber for contemporary versatility. Your choice depends on daily use and dial colour (champagne or black).

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

Changing the Datejust 36 strap requires dedicated tools: a universal spring bar tool (pin pusher) and a spring bar removal tool in stainless steel. Position the watch with a stable case, locate the horizontal pin connecting the strap to the lug, gently push the pin from one side to the other using the pusher to extract it. Repeat on the other side. Insert the new strap by aligning the holes with the lugs and re-insert the pins using the removal tool. Avoid hammers: the rose gold and stainless steel two-tone finish of the 126231-0044 is prone to scratching. If unsure, entrust the task to a specialist watchmaker or use the Casati Milano service by appointment.

Is there an aftermarket strap compatible with the Datejust 36 126231-0044?

Yes, any strap with a 20 mm lug width is compatible with the 126231-0044. You will find many budget options online, but quality, materials, and finishes vary greatly. We recommend artisanal straps produced by specialist manufacturers using premium leathers (alligator, shell cordovan, vegetable-tanned calf) and finishes consistent with your watch's calibre. Milanostraps offers a curated collection of 20 mm straps both online and through the Casati Milano atelier, where you can personally select the leather and follow the production process.

How long does a leather strap last on a Rolex?

The lifespan of a leather strap depends on the material, frequency of use, and environmental conditions. A quality artisanal alligator or shell cordovan strap lasts 3-5 years with moderate daily use; vegetable-tanned calf resists 2-4 years. Exposure to perspiration, water, and UV rays accelerates ageing. With Casati Milano, every artisanal 20 mm strap is covered by an 18-month warranty against manufacturing defects. Periodic replacement is not a flaw: it is part of the nature of genuine leather and allows you to regenerate the aesthetics of your Datejust 36 126231-0044.

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