Strap for Master Collection 40 Date Stainless Steel / Green - Roman

The lug width of the Longines Master Collection L2.793.4.09.2 is 21 mm (millimetres). This measurement represents the distance between the two lower attachment points on the case where the strap is inserted. You can verify this measurement using a digital calliper positioned between the lower lugs. Milanostraps.it offers a complete collection of compatible straps in this specification.

The optimal strap selection depends on intended usage. For formal contexts, we recommend black or cognac alligator with deployante clasp: these materials emphasise the dress-watch character of the model. For daily versatility, vegetable-tanned calfskin provides tactile comfort and develops a natural patina over time. Shell cordovan represents the ideal compromise between sport and formal wear, offering superior construction density and sophisticated stratified colour.

Strap replacement is a straightforward procedure: position the watch on a soft surface with the case facing upward. Using a dedicated spring bar tool, gently push the internal spring mechanism of the lower lug, releasing the strap. Repeat on the opposite side. Insert the new strap by aligning the lug with the lug holes, then reinsert the spring bars until they click. Avoid excessive force to prevent damage to the case finish.

Yes, all straps manufactured with 21 mm lug width specification are compatible with the L2.793.4.09.2. Milanostraps.it produces hand-crafted straps in this measurement with construction quality comparable to genuine Longines components. Customisable straps guarantee dimensional tolerance precision and utilisation of premium materials including alligator, calfskin, shell cordovan and cordura.

Leather strap longevity depends on daily usage patterns and material composition. Vegetable-tanned calfskin typically lasts 18-24 months with daily wear, developing a natural patina over time. Shell cordovan, denser and more resistant, can sustain 3-4 years of regular use. Alligator, with more delicate grain structure, benefits from rotation with alternative straps to extend serviceable life beyond 2 years. Milanostraps.it provides 18-month warranty on all artisanal Casati Milano straps.