Rolex · Day-Date 36

Strap for Rolex Day-Date 36 118205

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
Reference118205
FamilyDay-Date 36
MovementRolex caliber 3155 Hours, Minutes, Seconds | Date, Day | Chronometer

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 118205

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118205, seen from the bench

The Day-Date 36 reference 118205 is powered by the Rolex 3155 automatic movement with chronometer certification. The 36mm case is in pink gold with 20mm lugs. The functions include central hours, minutes, seconds, date, and day of the week.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 118205?

The Rolex Day-Date 36 ref. 118205 features a lug width of exactly 20mm, measured from the inside edge of one spring bar to the inside edge of the other. This dimension is precise and exclusive to the Day-Date 36 in Everose gold. Always verify this measurement before purchasing an aftermarket strap, as an incorrect lug width will result in improper installation or potential damage to the watch's spring bars.

What is the best strap material for the Rolex Day-Date 36 118205?

For the Day-Date 36 118205 in Everose gold, polished alligator in cognac or deep brown tones offers the most coherent aesthetic pairing with the watch. Shell cordovan serves as a sophisticated alternative for those seeking a naturally evolving patina over time. Vegetable-tanned calf leather provides absolute colour stability and refined texture, whilst grey ANTic NATO fabric remains the most versatile solution for daily wear.

How do I change the strap on the Rolex Day-Date 36 118205?

The Day-Date 36's strap is secured by two lateral spring bars connected to the lugs. Use a proper spring bar tool to extract these pins with minimal pressure—the bar must be gently compressed inward to disengage the spring without forcing. The operation demands precision: excessive force risks damaging the Everose gold. For absolute certainty, consult a professional watchmaker or Casati Milano's service, where you can follow the entire process via WhatsApp.

Is a quality aftermarket strap fully compatible with the Rolex Day-Date 36 118205?

Yes, provided it strictly adheres to the 20mm lug width and is crafted from premium materials. An artisanal aftermarket strap in alligator, shell cordovan, or vegetable-tanned calf can deliver construction quality equal to or exceeding official Rolex straps. Verify compatibility with the original spring bars and select an appropriate clasp—either a deployante or ardillon—that suits the case profile without interference.

What is the typical lifespan of a leather strap on the Rolex Day-Date 36 118205?

Strap longevity depends directly upon leather quality and tanning method. Premium alligator or shell cordovan straps withstand 4–6 years of daily use with proper care, whilst softer vegetable-tanned calf typically lasts 3–4 years before visible wear emerges. Leather is a living material: perspiration, humidity, and ultraviolet exposure accelerate ageing. Rotating your strap collection—alternating with FKM rubber or NATO options—significantly extends individual strap life and preserves natural patina development.

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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