Strap for Conquest V.H.P. GMT 41 Stainless Steel / Carbon / Rubber

The lug width of the Longines Conquest V.H.P. L3.718.4.66.9 is 20mm. This measurement is the distance between the lugs of the case and is essential for ensuring correct compatibility with replacement straps. Always verify that your strap measures exactly 20mm at the base to prevent damage to the case lugs.

The Longines Conquest V.H.P. L3.718.4.66.9 pairs ideally with straps in black or dark brown alligator, which maintain the watch's instrumental character. Vegetable-tanned calf leather offers a versatile and sustainable alternative, developing a natural patina over time. For nautical contexts, FKM rubber or NATO canvas straps provide complete water resistance. Shell cordovan remains the maximalist choice for extraordinary durability (8-10 years).

To change the strap, use a right-angled springbar tool. Insert the fine tip under the springbar from the underside of the case, applying gentle upward pressure until the bar flexes and the strap releases. Repeat for both sides. Avoid forcing directly with blunt tools that could scratch the stainless steel case.

Yes, the Longines Conquest V.H.P. L3.718.4.66.9 is compatible with 20mm aftermarket straps produced by specialist craftsmen. It is essential to verify that the strap is specifically dimensioned for this width and that the thickness at the base falls between 3.8mm and 4.2mm to ensure proper seating in the case lugs without lateral bulging.

Leather strap longevity depends on material and usage. European calf leather with vegetable tanning lasts an average of 3-5 years with daily wear. Shell cordovan, thanks to its natural hardness, guarantees 8-10 years. Alligator offers average durability of 5-7 years. Regular cleaning (drying after moisture exposure) and alternating with other straps significantly extend useful life.