Strap for GrandeVitesse Chronograph Blue Leather

The Longines GrandeVitesse L3.635.4.96.2 features a lug width of 20mm. This measurement is critical for aftermarket strap compatibility: verifying it with a digital calliper on the distance between the two case lugs ensures correct strap purchase and preserves the structural integrity of your timepiece.

Selection depends on intended use. For formal settings, a havana brown alligator with natural patina creates discreet elegance. For professional environments (aviation, maritime), traditionally tanned vegetable-tanned calf leather. For vintage-sportive aesthetic, a military beige or grey NATO canvas. For maximum durability and distinctive patina, burgundy shell cordovan develops rare depth over time.

The procedure requires specific tools: a spring bar tool to remove the lugs without damaging the case. Position the tool parallel to the lug, gently push the pin downward, extract the old strap. Insert the new one by aligning the holes, verify the pin is fully seated. If inexperienced, consult an expert: our Casati Milano atelier offers personalised support via WhatsApp.

Any strap with a 20mm lug width is compatible, provided the pins are standard. Recommended materials: alligator, calf leather, shell cordovan, cotton NATO. Online you'll find 20mm-compatible straps ready to ship with customisation options: length adjustment, initials, and stitching thread selection. For superior artisanal quality and bespoke sizing, consult Casati Milano.

A quality leather strap (alligatore, vegetable-tanned calf, shell cordovan) typically lasts 3–5 years with regular wear (4–5 days weekly) under normal conditions. Durability increases if the strap is rotated with others and protected from prolonged sun exposure. Shell cordovan and vegetable-tanned leathers develop patina over time, enhancing appearance. Artisanal straps from Casati Milano include an 18-month craftsmanship warranty.