Rolex
Daytona 116523-0047— lug 20mm

The Rolex Daytona 116523-0047 has a lug width of 20 millimetres. This measurement is standard for the model and must be strictly observed when selecting an aftermarket strap. To verify, remove the original strap and measure with a calliper the internal width of the spring bar hole: the dimension must correspond exactly to 20mm to ensure absence of lateral play and correct seating in the lugs.

The Daytona 116523-0047, featuring a mother-of-pearl dial and bicolour yellow-gold and steel case, pairs ideally with straps in black or chestnut alligator, vegetable-tanned, or dark-coloured box calf. For an aesthetic more consonant with chronograph sportiness, chestnut or burgundy alligator is recommended. Vegetable tanning is preferable as it develops a natural patina that visually integrates with the case's aging. For aquatic use, structured rubber in grey or black offers superior grip and resistance.

Strap replacement on Rolex watches requires removal of the spring bars, two small metal levers that retain the strap to the case lugs. Use a specialized tool (spring bar tool) to depress the lever end and slide it out of the seat. Never use screwdrivers or improvised tools, which risk scratching the case. Once removed from the original strap, insert the spring bars into the new strap ensuring the lever groove faces downward, then seat the bars in the case lugs and allow them to click into place. Verify there is no lateral play.

Yes, provided it strictly respects the 20-millimetre lug width. An artisanal strap crafted in premium leather (alligator, calf, shell cordovan) with hand-finishing is entirely compatible and often offers superior construction quality to factory straps. It is essential to verify that the lugs are correctly dimensioned to prevent play, that the buckle or deployante is robust, and that the leather has undergone certified durability treatments (vegetable or analine tanning). Casati Milano guarantees 18 months against manufacturing defects.

The lifespan of a leather strap depends on leather quality, tanning method, use and maintenance. A strap in vegetable-tanned alligator or calf, used with moderation, may last 3–5 years before replacement or restoration is necessary. Leather absorbs perspiration and body oils, which accelerate deterioration of edges and fibre structure. Daily and prolonged use, especially in humid environments, reduces lifespan to 2–3 years. It is advisable to rotate multiple straps for the same watch, allow air-drying in a dry environment after humid use, and avoid prolonged contact with cosmetics or perfumes. Regular maintenance (gentle cloth cleaning, annual conditioning with natural waxes) significantly extends strap life.