Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel Fluted / Oyster / Black 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
Reference116234-0122
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

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Straps for the Datejust 36 116234-0122

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 116234-0122, seen from the bench

The Datejust 36 reference 116234-0122 features the automatic caliber 3135 with official chronometer certification. The case has a diameter of 36mm with 20mm lugs. The movement offers hour, minute, second and instant date indication.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116234-0122?

The lug width is 20 millimetres. This measurement represents the distance between the two lugs that attach the strap to the case. To verify compatibility, measure with a digital calliper positioned perpendicularly to the lugs: the value must fall between 19.8 and 20.2 millimetres for correct installation.

Which strap is best for the Datejust 36 116234-0122?

For a two-tone case in white gold and steel, we recommend cognac brown alligator or vegetable-tanned calfskin. Alligator delivers formal elegance with refined patina development over time; calfskin guarantees daily durability and develops a distinctive grey patina. Both enhance the case's precious character without adding perceptible weight.

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

The process requires specific tools: a spring bar tool with bifurcated tip and a stable work surface. Position the watch with lugs facing upward, insert the tool tip into the space between lug and strap, apply gentle lateral pressure to release the internal spring, extract the pin. Repeat on the opposite side, then install the new strap by pushing the pin until you feel the spring engage.

Are aftermarket straps compatible with the 116234-0122?

Yes, provided they are manufactured with 20mm lug width. Compatibility is determined by physical pin dimension, not brand. However, bespoke artigianale straps offer superior leather quality, finishing, and warranty compared to generic straps. We recommend specialised suppliers who test every piece before delivery.

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

A quality alligator or calfskin strap, with proper maintenance, lasts 3–5 years of daily wear. Durability depends on frequency of use, ambient humidity, and leather care. To extend lifespan, avoid prolonged water immersion, occasionally apply balms formulated for artisanal leather, and rotate with alternative straps to distribute wear evenly.

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