Rolex · Day-Date 36

Strap for Day-Date 36 Everose / Strap / Chocolate

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
Reference118135-0019
FamilyDay-Date 36
MovementRolex caliber 3155 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

All Rolex spring barsOpen →

Straps for the Day-Date 36 118135-0019

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Day-Date 36 118135-0019, seen from the bench

The Day-Date 36 represents the classic version of the Rolex collection dedicated to the display of day and date. It mounts the automatic caliber 3155 certified as a chronometer with hour, minute, second, date and day of the week functions. The 36mm case uses 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 118135-0019?

The lug width of the Rolex Day-Date 36 reference 118135-0019 is precisely 20 millimetres. This dimension represents the distance between the attachment points on the case where the spring bars of the strap are secured. To verify the measurement, place a ruler at the level of the spring bar holes on the case. A 20-millimetre strap fits perfectly without forcing, maintaining the aesthetic balance of the 36-millimetre case.

Which strap material best complements the Day-Date 36 in rose gold?

Alligator with vegetable tanning represents the most traditional and versatile choice for the Day-Date 36 in rose gold: the natural texture of the reptile skin contrasts elegantly with the metal and develops a patina that evolves over time. However, aniline calf leather is ideal for those who prefer a minimalist and uniform aesthetic. Shell cordovan, extracted from the lower part of the horse's neck, is the solution for purists due to its extraordinary durability and capacity to acquire character. Rubber Rolex straps and textile NATO straps are also valid alternatives for a more modern and versatile fruition of the watch.

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

Changing the strap on a Rolex Day-Date 36 requires specific tools: a spring bar and an extraction tool. Position the watch on a stable, soft support to avoid scratches. Locate the small slot on the spring bar (usually facing downwards). Gently insert the extraction tool into the slot and apply light pressure to make the spring bar snap out of the case. Repeat on the opposite side. Once both bars are removed, the previous strap disengages. Align the holes of the new strap with the attachment points and reinsert the spring bars until you hear the characteristic click. If you are not experienced, we recommend consulting an expert in watch repairs.

Is an aftermarket strap compatible with the Rolex Day-Date 36 118135-0019?

Yes, any strap with a 20-millimetre lug width is compatible with the Rolex Day-Date 36 reference 118135-0019, provided it is certified artisanal quality. An aftermarket strap allows greater personalisation compared to Rolex factory options: you can choose specific materials, colours, finishes and buckle types (deployante, pin buckle, ardillon). However, choosing a product handcrafted using traditional techniques guarantees durability and an aesthetic consistent with the dignity of the watch. Avoid generic poor-quality straps, which would damage the appearance of the watch.

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

The lifespan of a leather strap depends on the material, usage and maintenance. A high-quality artisanal alligator strap lasts on average 5-7 years of daily use, thanks to the robust structure of the reptile scale. Aniline calf leather, more delicate, has a lifespan of 3-5 years of regular use. Shell cordovan, for its extraordinary durability, can exceed 10 years. A vegetable-tanned strap maintains its integrity longer if subjected to periodic maintenance: clean with warm water and neutral soap, dry thoroughly and apply a specific balm every 6-12 months. Prolonged exposure to sunlight, excessive humidity and sweat accelerates the ageing of the leather. Artisanal straps also offer the possibility of restoration interventions, significantly extending their useful life.

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.

Request an appointment →

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