Rolex · Day-Date 36

Strap for Day-Date 36 Everose Gold - Baguette / Slate - Diamond / President

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
Reference128395TBR-0012 (aka: m128395tbr-0012)
FamilyDay-Date 36
MovementRolex caliber 3255 Hours, Minutes, Seconds | Date, Day | Chronometer
CaseRose Gold

Recommended spring bar

Spring bars Rolex Daytona 116520 — 20mm steel

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm · closed lugs

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Straps for the Day-Date 36 128395TBR-0012 (aka: m128395tbr-0012)

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 128395TBR-0012 (aka: m128395tbr-0012), seen from the bench

The Day-Date 36 represents the contemporary version of the Rolex model introduced in 1956. It is equipped with the automatic Calibre 3255 with hour, minute, second, date and day of the week indications, certified as a chronometer. The case diameter is 36mm with 20mm lug width.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 reference 128395TBR-0012?

The lug width is 20 millimetres. This is the vertical distance between the two lugs of the case where the strap connects. A 20mm strap will fit with perfect geometric precision, leaving no gaps between lug and strap. It is essential to verify this measurement before purchasing an aftermarket strap to avoid compatibility issues.

Which strap material is best suited to the Day-Date 36 in rose gold?

Alligator in cognac or brown tones is the optimal choice for this model. The geometric texture of the reptile skin and the patina it develops over time amplify the sober character of rose gold. Vegetable-tanned calf leather is also excellent for daily wear, developing an organic patina over time. Shell cordovan remains the option for formal occasions, while custom rubber straps offer technical versatility.

How do you change the strap on the Rolex Day-Date 36?

The original Rolex President strap is removed using a spring bar remover tool, gently inserted into the lateral holes of the lugs. Using screwdrivers or improvised tools is not recommended, as the risk of scratching the case is high. Once removed, align the new strap's male attachments (barrels) precisely into the female lugs of the case. If you are not experienced, Casati Milano can perform the replacement by appointment in Milan.

Is an aftermarket 20mm strap compatible with the 128395TBR-0012?

Yes, any strap with a 20mm lug width is compatible. However, construction quality varies considerably. Straps made by specialised artisans guarantee consistent thickness, double stitching, and flawless finishing. On milanostraps.it you will find a selection of 20mm straps in various materials, from premium leather to technical fabrics, all tested for compatibility and durability.

How long does an alligator or calf leather strap last over time?

A high-quality artisanal alligator strap typically lasts 3–5 years if worn regularly (5–6 days per week), developing a characteristic patina. Vegetable-tanned calf shows visible signs of ageing after 2–3 years, but this is part of its aesthetic appeal. Durability depends on care: avoid prolonged exposure to direct sunlight or intense humidity. Casati Milano provides an 18-month warranty on manufacturing defects, covering abnormal wear due to construction issues.

The next step

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Casati Milano · Via XX Settembre 15, Milan · by appointment only