Strap for Master Collection Retrograde

The lug width of the Longines Master Collection L2.714.4.78.5 is 20 millimetres. This dimension is specific to this model and is measured as the distance between the two attachment pins on the lugs. It is essential to verify this measurement before purchasing an aftermarket strap, as 20mm is not compatible with the more common 18mm or 22mm widths. An incorrectly sized strap would require forced mounting and risk damaging the watch case.

The best strap for this model depends on its intended use: for formal and professional contexts, alligator is the ideal choice owing to its fine grain and natural patina development. Vegetable-tanned calf leather represents an excellent alternative for daily wear with predictable ageing. For maximum versatility, a black or navy blue canvas NATO strap allows rapid transition between different contexts. Shell cordovan is a premium option for enthusiasts seeking substantial construction and dramatic patina development.

Changing the strap on a Longines Master Collection L2.714.4.78.5 requires a spring bar removal tool. Position the watch on a stable surface, locate the pin at the base of the lug, insert the sharp tip of the tool into the pin's recess to compress the internal spring, and remove the pin completely. Once the old strap is removed, reinsert the pin into the new 20mm strap, ensuring both ends are firmly anchored to the watch case lugs. The procedure requires care to avoid scratching the case.

Yes, all straps with a 20mm lug width are compatible with the Longines Master Collection L2.714.4.78.5. Compatibility is guaranteed by the standardised 20mm measurement between attachments. It is important to verify this dimension before purchase, as straps from different manufacturers – even non-Longines brands – with 20mm lugs fit perfectly. On milanostraps.it you will find artisan straps in alligator, calf leather and shell cordovan, all available with 20mm lug width and customisable.

The lifespan of a leather strap depends on the material, usage and maintenance. A quality alligator or calf leather strap, with moderate daily use, typically lasts 3–5 years before showing significant wear. Shell cordovan, owing to its superior fibre density, can last 5–7 years. Factors influencing longevity include moisture exposure (perspiration), direct sunlight and temperature fluctuations. Regular maintenance – gentle cleaning and drying – significantly extends strap life. Casati Milano straps include an 18-month warranty and can be restored through re-dyeing or replacement of the outer leather.