Strap for Presence Automatic 34.5mm Stainless Steel / PVD Gold / Black

The lug width of the Longines Presence L4.821.2.52.2 is 18mm. This measurement refers to the internal distance between the two attachment shoulders on the case. It is essential to verify this measurement precisely using a digital calliper before ordering a compatible strap, as even small variations can compromise proper fitting.

For this model, straps in alligator, shell cordovan, or calf leather are recommended. Alligator maintains the austere aesthetic of the stainless steel case; shell cordovan adds sophistication and develops a rich patina over time; vegetable-tanned calf offers formal and daily versatility. For sporty use, a natural linen NATO strap transforms the watch's character without compromising construction quality.

Strap replacement requires a spring bar tool to compress and release the anchor pins. Insert the tool into the lug until you locate the small protrusion holding the pin, apply gentle pressure to remove it. Repeat on the opposite lug. Position the new strap, reinsert the pins, and verify they are securely locked. If you lack experience, the Casati Milano atelier performs the service free of charge upon purchase.

Yes, you can use aftermarket straps compatible with an 18mm lug width, provided they are crafted by specialised artisans who guarantee precise construction tolerances. MilanoStraps offers a complete selection of customisable 18mm straps in various leathers and colours. The critical factor is ensuring the strap has no excessive play on the lug, which would compromise both security and aesthetics.

A quality leather strap (alligator or shell cordovan) typically lasts 3-5 years with daily use, depending on exposure to moisture, perspiration, and sunlight. Vegetable tanning ages better than chrome tanning, developing a increasingly beautiful patina. The Casati Milano atelier provides an 18-month warranty and recommends periodic maintenance with natural waxes to extend the strap's lifespan.