Rolex · Cellini

Strap for Cellini Time Everose / White / Alligator Black

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
Reference50505-0021
FamilyCellini
MovementRolex caliber 3132 Hours, Minutes, Seconds | Chronometer
CaseRose Gold

Recommended spring bar

Spring bars Rolex Submariner 16613 — 20mm

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm

All Rolex spring barsOpen →

Straps for the Cellini 50505-0021

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Cellini 50505-0021, seen from the bench

The Cellini represents Rolex's classic watch collection, characterized by elegant and traditional lines. It is powered by the automatic chronometer-certified caliber 3132 with hours, minutes and seconds indication. The reference 50505-0021 features 20mm lugs and a classic dress watch design.

Frequently asked questions

What is the exact lug width of the Rolex Cellini 50505-0021?

The lug width of the Rolex Cellini 50505-0021 is precisely 20mm. This measurement represents the distance between the two spring bar holes on the case where the strap attaches. A correctly sized strap ensures symmetrical attachment without light gaps between the strap and the case lugs.

What type of strap is best suited for the Rolex Cellini 50505-0021?

For the Cellini 50505-0021, an alligator leather strap is the natural choice. The fine texture of alligator skin dialogues elegantly with the formal symmetry of the dial and rose gold case. Alternatively, smooth calf leather or shell cordovan are refined options that develop distinctive patina over time. Avoid NATO straps or informal materials that contradict the sartorial philosophy of the model.

How do you change the strap on a Rolex watch?

Changing the strap on a Rolex is performed by removing the spring bars that hold the strap to the case. You need a dedicated tool, typically a spring bar removal tool, inserted into the tiny lateral slot of each spring bar. Once the spring bars are removed, the old strap slides off and the new one is inserted into the case holes. It is advisable to have this operation performed by a professional watchmaker or a Rolex service centre to avoid damage to the case.

Is an aftermarket strap compatible with the Rolex Cellini 50505-0021?

Yes, any strap with a 20mm lug width is compatible with the Cellini 50505-0021. Quality aftermarket straps—crafted from alligator, calf, shell cordovan or other precious materials—represent an opportunity to personalise the watch whilst maintaining construction standards. It is essential to always verify that the lug width is precisely 20mm before purchase.

How long does a leather strap last on a daily-worn watch?

A quality leather strap, with proper maintenance, has an average lifespan of 4–7 years with daily use. Longevity depends on the type of leather (alligator tends to last longer), sun exposure, humidity, and intensity of use. A vegetable-tanned leather retains greater resistance over time. It is advisable to rotate between multiple straps to distribute wear and allow the material to rest.

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