Strap for Master Collection Date 36 Stainless Steel

The lug width of the Longines Master Collection L2.518.4.78.6 is 19 millimetres. This measurement represents the distance between the two lugs of the case where the strap is inserted. It is the historical standard for mid-sized watches and is compatible with a wide range of artisanal straps.

The Master Collection, thanks to its classical proportions and 36mm stainless steel case, pairs beautifully with alligator straps, vintage vegetable-tanned calf leather, or shell cordovan. For everyday versatile use, a vegetable-tanned calf strap develops natural patina and longevity, whilst for formal contexts cognac-toned alligator creates elegant synergy with the steel.

To change the strap, use a dedicated spring bar tool to compress the springs that secure the strap to the lugs. Remove the old strap by loosening both sides alternately, then insert the new 19mm strap ensuring the springs position correctly in the lug holes. The procedure requires care to avoid scratching the case.

Yes, absolutely. A quality artisanal 19mm strap is perfectly compatible with the Longines Master Collection L2.518.4.78.6. Straps crafted in premium leathers such as alligator, vegetable-tanned calf, or shell cordovan offer flawless fit and impart personality to the watch, with longevity often exceeding OEM straps.

The lifespan of a leather strap depends on tanning quality and usage. A vegetable-tanned calf strap, if maintained properly, lasts 5-7 years with daily wear. Alligator, naturally more resistant, easily reaches 7-10 years. The patina that develops is part of the aesthetic evolution. Artisanal straps constructed with robust stitching often exceed 10 years of longevity.