Strap for Conquest Heritage 40 Stainless Steel / Silver / Bracelet

The lug width of the Longines Conquest Heritage L1.650.4.72.6 is 20mm. This width is proportioned to match the 40mm case diameter and maintain visual balance between the integrated lugs and the dial. Always verify measurements with a digital calliper before ordering a replacement strap.

For this heritage model, straps in genuine alligator or vegetable-tanned calf are recommended. Cognac brown alligator enhances classic formality, whilst deep burgundy or stone grey calf creates elegant contrast with the steel case. For a sportier interpretation, vulcanised rubber or natural Tropic leather maintains the model's original spirit.

The Conquest Heritage uses integrated lugs, so the change involves inserting a spring bar tool into the lateral slot of the lug, compressing the internal hook and removing the lug from the old strap. Subsequently, the lug is reinserted into the new strap by sliding the hook into the corresponding slot until it clicks into place. The procedure requires care to avoid scratching the case.

Yes, all straps with a 20mm lug width are compatible with the Conquest Heritage L1.650.4.72.6. It is important to verify that the lugs are the correct width and that the basal section of the strap (where the lug sits) is proportioned to the case diameter to avoid unwanted play or gaps.

The lifespan of a leather strap depends on intensity of use, environmental factors (humidity, perspiration, solar exposure) and material. Genuine alligator or quality vegetable-tanned calf maintains structural integrity for 3–5 years of daily wear. Regular cleaning and drying after exposure to moisture significantly extend service life and preserve the natural patina of the leather.