Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold Domed / President/ Black MOP Computer

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
Reference118208-0084
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

All Rolex spring barsOpen →

Straps for the Day-Date 36 118208-0084

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Day-Date 36 118208-0084, seen from the bench

The Rolex Day-Date 36 ref. 118208-0084 is a yellow gold watch symbolizing presidential authority since 1956. It features a 36mm yellow gold case, 20mm lug width, and the automatic Rolex Caliber 3155 movement operating at 28,800 oscillations per second with COSC chronometer certification and Parachrom technology. The watch displays day and date functions with a characteristic Cyclops magnifier on the date window, secured by a double-safety gold deployante clasp.

Frequently asked questions

What is the correct lug width for the Rolex Day-Date 36 118208-0084?

The Day-Date 36 ref. 118208-0084 requires a lug width of 20mm. This dimension corresponds exactly to the inner shoulder of the case lugs. To verify it, measure with a digital calliper from one side to the other of the lugs, from the internal part: it should measure 20mm. No adjustment is necessary or recommended: 20mm is the Rolex manufacturing standard for this model.

What is the best strap for pairing with the Rolex Day-Date 36 in yellow gold?

For the 118208-0084 in 18k yellow gold, we recommend an alligator strap dyed in dark brown or cognac, which naturally complements the patina of the gold. Alternative of excellence: vegetable-tanned calf leather in cognac tone, which ages elegantly. Shell cordovan in bordeaux represents a bolder choice, ideal for those wishing to assert personality. For summer versatility, a silk NATO in dark grey maintains the formal authority of the model without sacrificing practicality.

How do I change the strap on my Day-Date 36 118208-0084?

Strap replacement is accomplished via spring bars, the small pins that connect the strap to the case lugs. Use a spring bar tool to gently compress the pins and remove the current strap. Position the new strap, always 20mm, aligning the holes with the spring bars and allow the pins to reposition. Avoid forcing: the motion should be fluid. If you are not experienced, contact an authorized Rolex service centre or a specialist watchmaker to avoid damage to the lugs.

Is a 20mm aftermarket strap compatible with my Day-Date 36 118208-0084?

Yes, provided the lug width is genuinely 20mm. However, compatibility does not equate to aesthetic excellence: an aftermarket strap of inferior construction quality risks emphasising rather than enhancing the watch's merit. We recommend straps in noble leather (alligator, calf, shell cordovan) or specialised technical textiles. Always verify that attachment holes are precise and that the transition between metal and strap is fluid: this is the indicator of true artisanal quality.

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

A high-quality artisanal strap in alligator or calf leather, subjected to moderate wear, typically lasts 3–5 years before requiring replacement. Shell cordovan, owing to its greater density, can last up to 7 years. Lifespan depends on frequency of use, exposure to moisture, and contact with elements damaging to leather (excessive perspiration, salt water, aggressive cleaning agents). A well-maintained strap—cleaned periodically with a soft, slightly damp cloth and protected from extreme humidity—significantly improves longevity. The patina that develops over time is not deterioration, but acquired character.

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