Rolex · Datejust 36

Strap for Datejust 36 Rolesor Yellow Diamond / Jubilee / Champagne Roman

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
Reference116243-0019
FamilyDatejust 36
MovementRolex caliber 3135 hours, minutes, seconds | chronometer
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 116243-0019

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 116243-0019, seen from the bench

The Datejust 36 reference 116243-0019 features the automatic caliber 3135 with official chronometer certification. The movement indicates hours, minutes and seconds with date function. The case has 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116243-0019?

The Rolex Datejust 36 reference 116243-0019 features a lug width of 20mm. This measurement represents the distance between the lugs (the metal extensions where the strap attaches to the case). It is essential to verify this specification before purchasing a replacement strap, as any variation would compromise the fit to the case.

Which strap do you recommend for the two-tone Datejust 36 116243-0019?

For the 116243-0019 two-tone yellow gold and stainless steel, we recommend a black or dark brown alligator strap for maximum elegance, or vegetable-tanned calf leather that develops patina over time. Avoid excessively light coloured straps: the champagne dial requires chromatic contrast. NATO and rubber options are valid for light sporting use, but less suitable for formal occasions.

How do I change the strap on the Rolex Datejust 36?

The Datejust 36 strap is removed using a small lever tool (spring bar tool) that allows you to compress the small metal hooks inside the lugs. Insert the tool into the appropriate slot, lift gently and slide out the old strap. Position the new strap aligned with the lugs, reinsert the hooks and ensure they are locked correctly. We recommend performing this operation on a soft surface to avoid scratching the case.

Are aftermarket straps compatible with the 116243-0019?

Yes, high-quality aftermarket straps are fully compatible with the Datejust 36 116243-0019, provided they are tapered to 20mm width at the ends. The Rolex case presents no particular interface restrictions. Choose manufacturers who explicitly guarantee compatibility and use premium materials (alligator, calf, shell cordovan) to do justice to the watch's quality.

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

A high-quality leather strap (alligator, calf, shell cordovan) with regular use typically lasts 4-7 years before showing significant signs of wear. Durability depends on frequency of use, climate, sun exposure and maintenance. Vegetable-tanned leathers tend to develop aesthetic patina before requiring replacement. Protecting the strap from salt water and alcohol-based perfumes significantly extends its useful 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