Rolex · Day-Date 36

Strap for Day-Date 36 White Gold Fluted / Oyster / Meteorite

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
Reference118239-0295
FamilyDay-Date 36
MovementRolex caliber 3155 hours, minutes, seconds | date, day | chronometer
CaseWhite 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 118239-0295

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118239-0295, seen from the bench

The Rolex Day-Date 36 White Gold Fluted (reference 118239-0295) is the flagship of presidential watchmaking, introduced in 1956 as the first automatic chronograph with simultaneous day and date display. The 36 mm white gold case maintains Rolex's original design proportions and houses the calibre 3155 automatic movement, COSC chronometer-certified with over 48 days power reserve and maximum deviation of ±2 seconds per day. The watch features a sapphire caseback, anti-reflective sapphire crystal, and applied gold indices on the dial. The 20 mm lug width accommodates compatible straps and bracelets designed for this specific geometry.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 118239-0295?

The lug width of the Rolex Day-Date 36 118239-0295 is 20 mm. This dimension represents the distance between the two lugs of the case and is the essential parameter for selecting a compatible watch strap. Always ensure that the strap you choose is explicitly specified as compatible with this measurement, as an incorrect width will either not fit properly or create excessive play.

What is the best strap material for the Day-Date 36 118239-0295 in white gold?

Alligator leather is the most traditional and time-tested choice for the Day-Date in gold. The natural grain of the hide creates visual texture that complements white gold without competing aesthetically. For those preferring smoother surfaces, vegetable-tanned calf leather offers a patina that develops with wear. Shell cordovan provides a stiffer structure and natural lustre. The choice ultimately depends on your intended use and personal preferences regarding tactile feel and appearance.

How do you change the strap on a Rolex Day-Date 36 118239-0295?

Changing the strap requires a spring bar removal tool (a specialised instrument) to disengage the spring bars that secure the strap to the lugs. Position the tool on the inner side of the spring mechanism, apply gentle pressure to compress it, and slide the strap out. Repeat on the opposite side. Before fitting the new strap, inspect the spring bars for corrosion or damage. Insert the new strap by pushing the spring bars and allowing them to click into their seats. If you prefer, a specialist service centre can perform this operation professionally.

Can I use an aftermarket compatible strap on my Day-Date 36 118239-0295?

Yes, absolutely. Aftermarket straps measuring 20 mm are mechanically fully compatible with the Day-Date 36 118239-0295. In fact, artisanal aftermarket straps offer greater personalisation: you can select raw materials (alligator, calf, shell cordovan) and closure configurations (traditional buckle or deployant clasp) with more freedom than Rolex's official catalogue. Ensure your chosen strap is crafted by specialists who guarantee construction quality equivalent to the original.

How long does a leather strap last on a Rolex watch like the Day-Date 36 118239-0295?

The lifespan of a leather strap depends on usage patterns, care and the quality of tanning and construction. On average, a well-crafted artisanal strap (alligator, vegetable-tanned calf or shell cordovan) lasts between 3 and 5 years with daily wear. With intermittent use, a strap may last 7–10 years. Key factors include exposure to perspiration, moisture, UV rays and regularity of maintenance. Gentle cleaning with a slightly dampened cloth and occasional application of leather conditioner preserve elasticity and sheen. A strap showing cracks or loss of flexibility should be replaced to prevent accidental breakage.

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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