Strap for Rolex Daytona 116505

The Rolex Cosmograph Daytona ref. 116505 is fitted with a 20-millimetre lug width, the standard specification established for the modern Daytona since 2000. Measurement is performed by applying a ruler across the internal anchor points of the case at the lugs. This 20mm dimension ensures universal compatibility with straps manufactured to this specification.

Alligator leather represents the most coherent choice with Everose gold: we recommend Havana, natural cognac, or polished black depending on the use case. Shell cordovan in burgundy or dark brown offers a more intense alternative, with visible patination over time. Vegetable-tanned calf is ideal for those who appreciate natural patina development. During summer months, an anthracite-grey rubber strap maintains overall aesthetic balance.

The operation is performed using small metal bars (spring bars) that traverse the lateral lugs of the case. Using a dedicated spring bar tool, press the bar from one side to release the lug from the worn strap, then insert the new strap by allowing the bar to emerge from the opposite holes. The procedure requires care to avoid scratching the case; professional watchmakers should perform this service.

Yes, provided it is manufactured for a 20-millimetre lug width. Casati Milano artisan straps are constructed to this specification, guaranteeing perfect compatibility. The critical factor is ensuring that the leather thickness and lug geometry adapt to the case without force, preserving the integrity of the gold sideband.

A high-quality leather strap—alligator, cordovan, or vegetable-tanned calf—maintains structural integrity for 5-8 years of moderate daily wear. Actual lifespan depends on deployant wear, frequency of use, and environmental conditions (humidity, solar exposure). Periodic maintenance with specialist creams significantly extends the strap's service life.