Rolex · Cellini

Strap for Cellini Time White Gold / White / Alligator Brown

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
Reference50509-0017
FamilyCellini
MovementRolex caliber 3132 hours, minutes, seconds | chronometer
Year2014
CaseWhite 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 50509-0017

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Cellini 50509-0017, seen from the bench

The Rolex Cellini 50509-0017 is a 39 mm white gold dress watch featuring a silver dial, applied hands, and transparent case back revealing the manually wound Rolex caliber 3132 movement. This Chronometer-certified caliber operates at 28,800 vibrations per hour with a 72-hour power reserve. The 20 mm lug width balances proportion and modern comfort, while the white gold case delivers sophisticated luminosity. The watch embodies pure watchmaking philosophy prioritizing aesthetic precision over tool watch functionality.

Frequently asked questions

What is the lug width of the Rolex Cellini 50509-0017?

The Rolex Cellini 50509-0017 features a lug width of 20 mm. This measurement is the result of Rolex's proportional calculation to maintain harmony between the case diameter (39 mm) and the overall structure of the watch. To verify correct strap compatibility, measure the distance between the spring bar attachment points using a digital calliper.

What is the best strap for the Rolex Cellini 50509-0017?

Alligator leather represents the canonical choice for the Cellini 50509-0017. Its natural texture, characterised by uniform and tapering scales, mirrors the clean geometry of the white gold dial. Alternatively, vegetable-tanned calf leather offers versatility and develops a natural patina over time, whilst FKM rubber represents a modern and durable option without stylistic compromise.

How do you change the strap on a Rolex Cellini 50509-0017?

Proceed with extreme caution. Position the watch on a soft, flat surface. Using a small pointed tool (spring bar tool), gently press inward one of the spring bars whilst simultaneously sliding the strap outward from the lug. Repeat the operation on the other side. When inserting the new strap, ensure that both spring bars click perfectly into position, verifying alignment from inside the strap.

Is an aftermarket strap compatible with the Rolex Cellini 50509-0017?

Yes, provided the strap is specifically manufactured for the 20 mm lug width. High-quality artisanal straps, such as those supplied by specialised sartorial ateliers, offer complete compatibility whilst guaranteeing the same level of finishing and reliability as the original Rolex strap. Always verify the lug width reference number before purchase.

How long does a leather strap last on a Rolex Cellini 50509-0017?

Durability depends on the material and usage patterns. High-quality alligator can last 3-5 years with regular maintenance and rotation with other straps. Vegetable-tanned calf leather has similar longevity, whilst FKM rubber can last up to 7-10 years thanks to greater resistance to atmospheric agents. Regular maintenance with specific cleaners and proper storage significantly extend the life of the strap.

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