Strap for Flagship 35.6 Quartz

The lug width of the Longines Flagship L4.716.4.72.6 is 20mm. This measurement represents the space between the two lugs of the case where the strap passant (keeper) is inserted. Measuring this dimension accurately is essential before ordering a compatible aftermarket strap.

The best strap depends on your intended use. For formal occasions, we recommend alligator or shell cordovan leather, which exude refined elegance. For daily wear, vegetable-tanned calf leather offers natural breathability and develops a patina over time. For versatility, a robust fabric strap or black leather adapts to any situation without compromising durability.

To change the strap, position your watch on a soft surface and use a small screwdriver or dedicated spring bar tool to extract the spring bars (pins) from the lugs. Remove the old strap by sliding out the spring bars from the ends, then insert the new strap into the lugs and reposition the bars. Ensure the strap has the correct lug width (20mm) and that the spring bars are securely fastened.

Yes, the Flagship L4.716.4.72.6 is fully compatible with quality aftermarket straps, provided they feature a 20mm lug width. Numerous options are available online in premium leathers (alligator, calf, shell cordovan), robust fabric, and rubber, all specifically sized for this model. Always verify lug width compatibility before purchase.

Leather strap durability varies based on material and usage. Vegetable-tanned calf leather typically lasts 3-5 years with moderate daily wear; alligator can exceed 7-8 years; shell cordovan, being more resistant, reaches 10+ years. Factors such as sun exposure, humidity, perspiration, and frequency of use directly influence longevity. Regular maintenance (cleaning, occasional conditioning) extends strap lifespan.