Strap for Master Collection 40 Date Stainless Steel / Silver-Diamond / Alligator

The lug width of the Longines Master Collection L2.793.4.77.3 is 21 millimetres. This measurement should be verified by positioning a ruler between the inner points of the left and right lugs, parallel to the crown. Straps must be exactly 21mm to avoid unwanted gaps or strain during installation.

The Longines Master Collection L2.793.4.77.3 aesthetically pairs with straps in Nile alligator (natural four-line grain), vegetable-tanned calfskin, or shell cordovan. For daily versatility, cotton canvas NATO straps and FKM rubber sports straps maintain correct proportions. Choice depends on purpose: alligator for formal elegance, calfskin for tactile character, NATO for practicality.

The Longines Master Collection L2.793.4.77.3 features threaded lugs enabling swift strap removal. Position the watch on a soft mat, use a standard pushpin remover tool, press the lateral buttons at 9 and 15 o'clock to release the lugs. Once released, withdraw the old strap and insert the new one maintaining parallel alignment to the case. The operation requires approximately two minutes of practice.

Yes, it is entirely possible to use aftermarket 21mm straps on the Longines Master Collection L2.793.4.77.3. Milano Straps offers artisanal straps in leather, rubber and textile specifically dimensioned for this lug width, with customisation options in colour, stitching and length. Aftermarket strap use does not compromise warranty or functionality of the watch.

The lifespan of a leather strap depends on frequency of use, exposure to moisture and construction quality. Quality leather (alligator, calfskin, shell cordovan) maintains structural integrity for 3-5 years with moderate daily wear. Prolonged exposure to sweat, rain and UV accelerates ageing. Milano Straps guarantees artisanal straps for 18 months, with possibility of maintenance and finishing layer replacement prior to expiry.