Strap for Flagship Chronograph Two Tone

The lug width of the Longines Flagship L4.803.3.32.7 is 20mm. This measurement represents the distance between the pins that anchor the strap to the case lugs and is specific to this chronograph model.

For the Flagship L4.803.3.32.7, we recommend brown alligator, Cognac shell cordovan, or grey ardoise vegetable-tanned leather. These materials create chromatic harmony with the brushed steel case and silver dial, enhancing the chronometric character.

Using a spring bar tool, remove the elastic pins from the steel lugs. Slide off the old strap, insert the new one by aligning the pins in the lateral holes and press until you hear a click. Verify that the pins are fully engaged.

Yes, aftermarket straps are compatible provided the lug width is precisely 20mm. Always verify dimensions before purchase. Artisanal leather straps offer aesthetic alternatives to the original strap while maintaining full compatibility.

A quality leather strap subjected to daily wear has an average lifespan of 3-5 years before replacement is necessary. Longevity depends on the tanning method (vegetable tanning resists better), environmental humidity and cleaning frequency. Leather develops natural patina, aesthetically enriching the watch.