Technical Archive

Rolex
Cellini 50525-0009— lug 20mm

Rolex Cellini 50525-0009: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Cellini Dual Time Everose / Silver / Alligator Black

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 50525-0009
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

50525-0009

Movement

Rolex caliber 3180 Hours, Minutes, Seconds, Additional 12 Hour Hand (adjustable), Day / Night Indication | Chronometer

The Heritage

The Rolex Cellini 50525-0009 is a 39mm round case dress watch in 18k Everose gold, powered by the Rolex 3180 automatic movement certified chronometer by COSC. It features a white lacquered dial with applied indices and hands in gold, and a dual time zone function with day/night indicator for classic elegance across time zones. The 20mm lug width accommodates traditional strap options, particularly vegetable-tanned alligator leather which develops a personal patina over time.

FAQ

What is the lug width of the Rolex Cellini 50525-0009?

The Rolex Cellini 50525-0009 has a lug width of 20mm. This measurement is taken with a digital calliper between the two lugs at the point where the strap inserts into the case. The 20mm standard is common across high-end dress watches and ensures wide compatibility with aftermarket straps.

What is the best strap for the Rolex Cellini 50525-0009?

For the Cellini 50525-0009 in rose gold, the most appropriate materials are vegetable-tanned alligator — which develops a personal patina over time — and polished box calf leather. Cognac or dark burgundy tones best complement the warm hues of the rose gold case. A rose gold deployant clasp completes the pairing with formal consistency.

How do I change the strap on the Rolex Cellini 50525-0009?

The strap is removed using a springbar tool inserted into the notch between the lug and the spring bar. Apply gentle inward pressure to release the bar from one side, then the other. Care must be taken to avoid scratching the rose gold lugs. Alternatively, a watchmaker or the Casati Milano atelier can perform the swap safely.

Are there aftermarket straps compatible with the Rolex Cellini 50525-0009?

Yes. Any strap with a 20mm attachment and standard spring bars is compatible with the Rolex Cellini 50525-0009. Milanostraps.it offers a curated selection of handcrafted leather straps — in alligator, shell cordovan, and calf leather — in lengths and finishes appropriate for a dress watch of this calibre.

How long does a leather strap last on a Rolex Cellini 50525-0009?

A quality leather strap — vegetable-tanned alligator or shell cordovan — typically lasts between two and five years with regular use, provided it is kept away from prolonged exposure to moisture, perspiration, and direct sunlight. Applying a leather conditioner every three to four months preserves the grain and slows deformation. Casati Milano straps include an 18-month warranty against manufacturing defects.

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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By appointment only · Milan

The atelier's website: casatimilano.com