Strap for Prestige Gold Oval 20.4

The lug width of the Longines Les Grandes Classiques L4.225.7.11.2 is 20 millimetres. This measurement represents the internal distance between the two lugs of the case where the strap is inserted. It is essential to verify this specification before purchasing an aftermarket strap, as an incorrect size would result in either incompatibility or instability when wearing the watch on the wrist.

For a dress watch in yellow gold such as this model, the best strap is crafted from dark brown alligator or shell cordovan. Alligator leather imparts maximum formal elegance through its distinctive grain, whilst shell cordovan develops a captivating burgundy patina over time. Both materials enhance the luminosity of yellow gold and remain coherent with the minimalist and sophisticated philosophy of the dial. For more versatile contexts, Italian calf leather in chocolate tonality represents a practical choice without sacrificing elegance.

The strap is changed using a dedicated spring bar remover tool. Position the flat-head screwdriver end of the tool into the seat of the elastic pin present on the lug, exerting gentle outward pressure to release the strap from the case lug. Proceed with care to avoid scratching the yellow gold. Once the old strap is freed, insert the new one by aligning the holes with the elastic pins. For bespoke straps, it is advisable to consult Casati Milano to ensure millimetre-perfect adjustment and flawless installation.

Yes, the model is fully compatible with quality 20mm aftermarket straps. At milanostraps.it you will find a dedicated selection of 20mm straps in alligator, calf, cordovan and rubber, manufactured to the same construction standards as an original Longines strap. It is essential to select straps fitted with a lug in certified stainless steel or yellow gold to maintain material coherence with the watch and guarantee longevity over time.

The lifespan of a leather strap depends on frequency of use, material quality and exposure conditions. A bespoke-quality alligator or shell cordovan strap, worn daily, maintains full functionality for between 3 and 5 years before requiring replacement. Italian calf, being more delicate, may last 2–3 years under intensive use. Longevity increases significantly if the watch is worn sporadically or if the strap is protected from humidity and direct sunlight. Casati Milano provides straps with an 18-month guarantee and offers replacement options on preferential terms.