Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold Domed / President / Lavender Carousel

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
Reference118208-0354
FamilyDay-Date 36
MovementRolex caliber 3155 Hours, Minutes, Seconds | Date, Day | Chronometer
CaseYellow 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 118208-0354

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118208-0354, seen from the bench

The Day-Date 36 represents the contemporary version of the classic Rolex watch with day and date indication. It is equipped with the automatic caliber 3155 with chronometer certification and dual day-date complication. The 36mm case features 20mm lugs and maintains the traditional proportions of the collection.

Frequently asked questions

What is the exact lug width of the Rolex Day-Date 36 118208-0354?

The lug width of the Rolex Day-Date 36 118208-0354 is precisely 20 millimetres, measured internally between the two lugs that secure the strap. This is a specific and exact dimension for this model: to verify compatibility, measure the internal space with a digital calliper. Straps of different widths (19mm or 21mm) will create visual misalignment with the case.

Which strap material is recommended for a Day-Date 36 in yellow gold?

Alligator remains the primary choice for the Day-Date 36 in yellow gold, particularly vegetable-tanned leather that develops golden patina over time. Vegetable-tanned calf is an elegant and versatile alternative. Equine shell cordovan is a contemporary choice that ages remarkably well. For robust daily wear, FKM rubber is functionally sound but aesthetically distant from the presidential character. Silk NATO straps remain a consciously informal option.

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

Changing the strap requires a spring bar removal tool. Position the watch with the case facing upward, locating the small hole on the inner side of each lug. Insert the tool into the hole to release the internal clip, then extract the pin. Repeat on the opposite side. Align the new strap pins, insert them into the lugs, and verify that the strap is firmly secured before wearing. If inexperienced, entrust the operation to a qualified watchmaker.

Is an aftermarket 20mm strap compatible with the Day-Date 36 118208-0354?

Yes, any strap designed for 20-millimetre lugs is compatible with the Day-Date 36 118208-0354, provided the pins are standard Rolex specification (1.80mm diameter for this reference). Always verify that the strap explicitly declares 20mm compatibility and that the terminals are correctly dimensioned for the case. A bespoke artisanal strap ensures perfect fit and superior construction quality.

How long does a natural leather strap last on a Rolex Day-Date 36?

A high-quality alligator or calf strap with vegetable tanning typically lasts 3-5 years of regular daily use, depending on sun exposure, humidity, and frequency of wear. Shell cordovan is more durable and can reach 7-8 years. Longevity depends on care: avoid prolonged immersion, dry promptly after water contact, and occasionally apply a skin conditioner formulated for natural leather. An 18-month warranty on manufacturing defects, such as Casati Milano provides, offers additional protection against constructive vices.

The next step

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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