Technical Archive

Rolex
Datejust 36 116234-0117— lug 20mm

Rolex Datejust 36 116234-0117: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Datejust 36 Stainless Steel Fluted / Jubilee / Pink Floral

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 116234-0117
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

116234-0117

Movement

Rolex caliber 3135 Hours, Minutes, Seconds | Chronometer

The Heritage

The Rolex Datejust 36 reference 116234-0117 combines vintage proportions with modern technology in a 36mm two-tone case of white gold and stainless steel. The satin silver dial features a date window at 3 o'clock, paired with mixed metal bracelets. The 20mm lug width accommodates aftermarket straps precisely. Inside, the Rolex Caliber 3135 automatic movement is chronometer-certified with ±2 seconds per day accuracy, featuring a Parachrom hairspring and Paraflex balance for magnetic and shock resistance. The case thickness of 11.55mm ensures a discreet profile.

FAQ

What is the lug width of the Rolex Datejust 36 ref. 116234-0117?

The Rolex Datejust 36 reference 116234-0117 features a lug width of 20 millimetres. This is the distance between the two attachment pins on the case where the strap is fitted. To verify, use a digital calliper, positioning the tip on the inner side of both lugs: precise measurement is essential to ensure strap compatibility.

Which strap best suits the bicolor Rolex Datejust 36 116234-0117?

For a Datejust 36 in white gold and stainless steel, we recommend an alligator leather strap with vegetable tanning in cognac brown or deep tones. This choice respects the aesthetic balance of the mixed-metal case without introducing excessive contrast. Alternatively, black calf leather offers a more contemporary appearance, whilst shell cordovan creates a tactile relationship through the patina developed over time.

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

Changing the strap on a Rolex Datejust 36 requires two tools: a spring bar tool and a scratch-resistant flat surface. Position the watch face-down on soft fabric. Insert the blade of the spring bar tool beneath the strap end lug, applying gentle pressure to release the elastic pin. Repeat on the other side. Remove the old strap and insert the new strap's pins into the corresponding slots, ensuring both sides are properly secured. If uncertain, entrust the task to a professional watchmaker: an error could result in the watch falling.

Which aftermarket straps are compatible with the Datejust 36 116234-0117?

Any strap with a 20mm lug width is compatible with the Datejust 36 116234-0117. We recommend only high-quality artisanal straps crafted from alligator, calf, shell cordovan, or rubber. On milanostraps.it you will find a curated selection of 20mm straps compatible with this model. Always verify the lug width before purchase to avoid sizing errors.

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

A strap crafted from premium leather—such as alligator, calf, or shell cordovan—has an average lifespan of 3–5 years with daily use and proper maintenance. Longevity depends on: frequency of use, moisture exposure, leather type (cordovan resists longer), and quality of artisanal workmanship. Vegetable-tanned leather ages naturally, developing patina and character, whilst industrial leather tends to crack. Casati Milano straps are protected by an 18-month warranty against manufacturing defects.

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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By appointment only · Milan

The atelier's website: casatimilano.com