Rolex · Datejust 36

Strap for Datejust 36 Rolesor Everose Domed / Oyster / Silver Computer

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
Reference116201-0077
FamilyDatejust 36
MovementRolex caliber 3135 Hours, Minutes, Seconds | Chronometer
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 116201-0077

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Datejust 36 116201-0077, seen from the bench

The Datejust 36 reference 116201-0077 is powered by the automatic caliber 3135 with official chronometer certification. The movement displays hours, minutes and seconds with a date function. The case features 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116201-0077?

The lug width of the Rolex Datejust 36 116201-0077 is 20 millimetres. This measurement represents the free distance between the case lugs, where the watch strap pins are seated. It is essential to select a strap calibrated precisely at 20mm to ensure a secure fit and eliminate any slack.

Which strap is most suitable for the Rolex Datejust 36 116201-0077?

For the Datejust 36 in Everose and steel, alligator leather remains the ultimate choice owing to its natural grain and the patina that develops with age. Alternatively, vegetable-tanned calf offers superior longevity and refined character. For everyday wear, an FKM rubber strap or NATO textile guarantees practicality without compromising quality.

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

Strap replacement requires extraction of the lateral case pins. Position the watch on a flat surface, locate the small hole on the case (often on the inner lug side), insert a spring bar tool into the hole, and gently push the pin inward to extract it. Repeat on the opposite side. For models with integrated bracelets, consult an authorised watchmaker.

Can I use an aftermarket strap compatible with my Datejust 36?

Yes, quality aftermarket straps can be used provided they are calibrated to the 20mm lug width specification. Specialised brands such as Casati Milano produce artisanal straps that respect Rolex construction tolerances, offering excellent alternatives in alligator, vegetable-tanned calf, and FKM rubber.

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

The lifespan of a leather strap depends on material quality and usage frequency. High-quality alligator lasts 8–12 years with routine maintenance. Vegetable-tanned calf can exceed 10 years of service. FKM rubber typically resists 5–7 years before showing degradation signs. Sun exposure, humidity, and wear frequency accelerate natural leather deterioration.

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