Strap for Conquest Classic Automatic 40 Red Gold / Silver

The lug width of the Longines Conquest Classic L2.785.8.76.3 is 20 millimetres. This measurement is taken between the inner shoulders of the two lugs, excluding the case body. Precise measurement is essential to order a compatible strap without lateral play.

For the Conquest Classic in 18-carat rose gold, dark brown alligator or vegetable-tanned calf leather are the most appropriate choices. Alligator respects the formal elegance of the case, whilst vegetable-tanned calf offers a satin texture that discreetly complements the gold without competing with the case's lustre. For informal wear, a NATO strap in cotton is versatile and practical.

Strap replacement is performed using a spring bar tool to insert or remove the elastic pins (spring bars) that connect the strap to the case lugs. Work on a soft surface to avoid scratching the rose gold, and ensure the new strap sits perfectly in the lugs with no visible play. The operation takes only a few minutes with the correct tool.

Yes, any artisanal strap manufactured to a 20-millimetre lug width tolerance is compatible with the Conquest Classic L2.785.8.76.3, provided it is fitted with suitable spring bars (standard 1.8 millimetre diameter). Aftermarket straps offer greater aesthetic freedom than the original strap and allow you to personalise the watch according to seasonal preference.

The lifespan of a natural leather strap depends on usage, season, and tanning method. An alligator strap with vegetable tanning, worn moderately, lasts 3 to 5 years before showing significant wear; shell cordovan resists longer, up to 7 years. Direct sunlight and humidity exposure shorten useful life. Regular maintenance and seasonal replacement straps extend longevity significantly.