Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel Fluted / Oyster / Blue 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
Reference116234-0123
FamilyDatejust 36
MovementRolex caliber 3135 hours, minutes, seconds | chronometer
CaseWhite 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

All Rolex spring barsOpen →

Straps for the Datejust 36 116234-0123

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Datejust 36 116234-0123, seen from the bench

The Datejust 36 reference 116234-0123 is powered by the automatic caliber 3135 with official chronometer certification. The 36mm case features hours, minutes, seconds and date functions. Standard 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116234-0123?

The Rolex Datejust 36 with reference 116234-0123 features a 20 mm lug width. This measurement refers to the distance between the inner shoulders of the two watch lugs and is the standard specification for this reference. Accurate measurement with a calliper, positioned perpendicularly between the spring bar seats, is essential when sourcing third-party straps of superior quality.

Which strap is best suited for the Datejust 36 116234-0123?

For the Datejust 36 in white gold and steel, alligator leather remains the most elegant choice, particularly in warm brown tones that complement the bi-metal aesthetic. Vegetable-tanned calf leather offers a contemporary alternative with uniform grain and evolving patina. For sports contexts, Oysterflex rubber or NATO fabric straps maintain versatility without aesthetic compromise. Selection ultimately depends on use case and personal patina preference.

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

To change the strap, the spring bars must be carefully removed from the lugs. Using a specialised tool or fine-tip flathead screwdriver, compress the internal spring of the bar and extract it from the lower lug seat. Insert the new spring bar through the strap eyelet whilst maintaining compression, then reinsert into the upper lug seat. This procedure requires precision to avoid case damage; many owners prefer professional strap-changing services.

Can I use an aftermarket strap on my Rolex Datejust 36 116234-0123?

Yes, provided the strap is specifically designed for the 20 mm lug width of the Datejust 36. A bespoke strap crafted from noble materials—alligator, calf, or shell cordovan—adds personalised character whilst maintaining harmonious proportions befitting this prestigious reference. We advise against economical or poorly constructed products, which would diminish the aesthetic integrity of such a refined timepiece.

How long does a leather strap last on a watch like the Datejust 36?

Strap longevity depends on material type, tanning process, and frequency of wear. High-quality alligator may serve 5–10 years with daily use; calf leather 3–5 years; shell cordovan 7–12 years owing to natural resistance and water-shedding properties. Vegetable-tanned leather, free from synthetic polyurethanes, permits extended lifespan and develops a beautiful aged patina. Bespoke straps with attention to detail and basic maintenance—cleaning and drying—demonstrate superior durability versus mass-produced alternatives.

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