Strap for GrandeVitesse Tachymeter Brown Strap

The lug width of the Longines GrandeVitesse L3.636.4.60.2 is 20mm. This measurement identifies the space between the lugs of the case that anchor the strap, and it is the essential parameter for selecting compatible straps. A 20mm strap inserts into the lugs without forcing, guaranteeing balanced wrist wear.

For a sports chronograph like the GrandeVitesse, alligator leather represents the ultimate luxury solution: its natural texture contrasts elegantly with the steel case, and its mechanical resistance makes it ideal for supporting the weight of the movement. Shell cordovan offers unique patina and fascinating aging, whilst vegetable-tanned calf leather represents a contemporary and sustainable alternative. In summer, a NATO or vulcanised rubber strap offers practicality without compromising legibility.

Strap replacement is performed by removing the spring bars from the case using a dedicated spring bar tool with dual ends. Position the watch on a soft, flat surface, locate the lateral spring bars, and carefully compress one at a time to release the old strap. Insert the spring bars into the new 20mm strap and verify that the passage is smooth. If the strap has keepers, ensure they are wide enough to accommodate the case without tearing.

Yes, the L3.636.4.60.2 is fully compatible with quality aftermarket straps thanks to the standard 20mm lug width. Straps crafted by specialised artisan brands fit perfectly. It is advisable to verify leather quality, stitching consistency, and keeper robustness to ensure longevity and comfortable wear.

The lifespan of a leather strap depends on daily use and tanning method. A quality alligator or shell cordovan resists an average of 3-5 years with regular use, developing a fascinating patina. Vegetable-tanned calf leather tends to age more rapidly, with visible wear marks after 2-3 years. Rotating between multiple straps and periodic maintenance (gentle cleaning and conditioning) significantly extend longevity. In case of excessive wear, the Casati Milano atelier offers restoration and replacement services.