Rolex · Daytona

Strap for Rolex Daytona 116503

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

Lug width20 mm
Case diameter40 mm
Reference116503
FamilyDaytona
MovementRolex caliber 4130 Hours, Minutes, Small Seconds | Chronograph, Column wheel | 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

All Rolex spring barsOpen →

Straps for the Daytona 116503

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Daytona 116503, seen from the bench

The Daytona reference 116503 features a 40mm case made of stainless steel and yellow gold with 20mm lugs. It is powered by the Rolex 4130 automatic caliber with column-wheel chronograph function and chronometer certification. The movement offers hours, minutes, small seconds, and chronograph indication.

Frequently asked questions

What is the lug width of the Rolex Daytona 116503?

The Rolex Daytona 116503 features a lug width of 20 millimetres. This width is standard for the Daytona family in Rolesor version and is essential for selecting compatible aftermarket straps. Always verify this measurement before purchasing, as incorrect lug width will compromise fit and security.

What is the best strap for the Rolex Daytona 116503?

There is no singular answer, as selection depends on intended use. Alligator with vegetable tanning amplifies the luxurious character of the Rolesor variant; Italian leather provides versatility between sporting and formal contexts; natural rubber accentuates motorsport heritage; NATO offers maximum casual sportivity. All materials must exhibit straight stitching, consistent thickness, and properly finished edges.

How do I change the strap on a Rolex Daytona 116503?

Remove the strap using a spring bar removal tool to avoid scratching the case. Position the watch on a soft surface, locate the spring bars within the lugs, and gently press the tool until the bars are extracted. Once removed from the old strap, reinsert the spring bars into the new strap and attach to the lugs. Professional watchmakers are recommended for this operation if inexperienced.

Is an aftermarket strap compatible with the Rolex Daytona 116503?

Yes, quality aftermarket straps are fully compatible. The only technical constraint is the 20-millimetre lug width measurement. However, it is advisable to select specialists who respect original Rolex proportions, avoiding excessive thickness that would alter case aesthetics. A quality artisanal strap can actually enhance daily wearing experience.

What is the lifespan of a leather strap on the Rolex Daytona 116503?

Lifespan varies based on material, usage, and maintenance. Italian calf with vegetable tanning subjected to moderate wear lasts approximately 3–5 years before showing breakdown signs; alligator, more resilient, can reach 6–8 years; shell cordovan evolves aesthetically without failing but requires periodic conditioning. Constant exposure to perspiration, salt water, and UV rays significantly shortens lifespan. Regular maintenance—drying after humidity exposure, conditioning with natural wax—extends useful life.

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