Strap for Master Collection Date 34 Stainless Steel / MOP / Bracelet

The lug width of the Longines Master Collection L2.357.4.87.6 is 18mm. This measurement represents the distance between the connecting pins on the case and is essential for identifying compatible straps. The moderate lug depth (approximately 20mm) makes it advisable to choose straps with thickness between 2.8 and 3.2mm to avoid excessive bulk on the wrist.

Alligator remains the most coherent choice for the L2.357.4.87.6: its regular texture amplifies the geometric order of the silvered dial. A sober alternative is vegetable-tanned calf leather, which develops natural patina over time. Shell cordovan guarantees exceptional durability, whilst technical rubber represents the most versatile option for daily wear. NATO straps are not recommended, as their width would overwhelm the watch's proportions.

Strap replacement requires a dedicated tool (spring bar tool). Position the watch with the lug side facing upward, gently compress the elastic pins (spring bars) located on the sides of the case using the tool, and slide out the old strap. Insert the new strap's pins into the case lugs, ensuring they are fully locked. To avoid damaging the steel, it is preferable to entrust this operation to a professional atelier such as Casati Milano.

Yes, the L2.357.4.87.6 accepts any 18mm strap (standard lug width). Artisanal 18mm straps from milanostraps.it are fully compatible and offer stylistic and material alternatives to original straps. It is important to verify that the strap thickness is suitable (2.8–3.2mm) and that the buckle or deployante chosen adapts to the proportions of the steel case.

The longevity of a leather strap depends on the material and usage pattern. Alligator and vegetable-tanned calf leather guarantee 3–5 years of daily wear before replacement becomes necessary. Shell cordovan is more resistant and may last 5–7 years. Exposure to moisture, perspiration and ultraviolet light accelerates ageing. Premium artisanal straps from milanostraps.it are crafted with top-grade leathers and feature internal reinforcements that significantly extend durability compared to standard straps.