Strap for Master Collection Chronograph

The lug width of the Longines Master Collection L2.669.8.78.3 is 20mm. This specification is determined by the distance between the lateral lugs of the case. To verify correctly, position a calliper between the lugs at the innermost point: the value must be exactly 20mm to ensure compatibility with aftermarket straps.

For the L2.669.8.78.3 in rose gold, alligator leather is the most elegant choice due to its fine texture that does not compete with the case. Alternatively, shell cordovan with vegetable tanning offers an extraordinary evolving patina, whilst black calf leather creates a sophisticated aesthetic contrast. Synthetic rubber is ideal for those seeking practicality without sacrificing elegance.

To change the strap, remove the spring bars located at the lugs of the case using a dedicated tool or small lever. Gently extract the old strap, insert the new one into the spring bar holes, then reposition the spring bars until you feel the locking click. If you are uncertain about the procedure, consult a certified watchmaker.

Yes, provided the strap is compatible with the 20mm lug width. High-quality aftermarket straps, such as those in alligator, shell cordovan or vegetable-tanned calf, are completely compatible with your L2.669.8.78.3. Always verify the lug width before purchase to avoid fitting issues.

The lifespan of a natural leather strap depends on the type of tanning, frequency of use and maintenance. A high-quality artisanal strap in alligator or shell cordovan offers a lifespan of 5-8 years under normal conditions, developing a natural patina. Leather requires protection from excessive moisture and periodic conditioning treatments to extend its useful life.