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

The lug width of the Longines Conquest V.H.P. L3.718.2.66.9 is exactly 20 millimetres. Any strap installed must have a precise width of 20 millimetres between the lugs. There is no tolerance: a 19 or 21 millimetre strap will not be compatible. Measurement should be taken with the watch laid flat, measuring the perpendicular distance between the two lugs, excluding the case thickness.

For the 41-millimetre stainless steel Conquest V.H.P., three options stand out. Alligator with natural grain offers formal authority and creates contrast with the sports case. Shell cordovan, with its lasting patina and colour development over time, suits those seeking a strap that ages nobly. Vegetable-tanned calf leather represents the daily-wear compromise: soft, porous and versatile. All require 20 millimetre width and open lugs for proper suspension and deployante compatibility.

Strap replacement requires a spring bar tool. Place the watch on a soft surface and identify the two metal pins (spring bars) connecting the strap to the lugs. Insert the flat tip of the tool under the first pin, gently press to compress the internal spring and withdraw the pin. Repeat for the opposite side. Install the new 20mm strap by aligning the holes with the pins and press until they click into position. Verify the strap is secure by gently pulling.

Yes, the Longines Conquest V.H.P. L3.718.2.66.9 is fully compatible with quality aftermarket straps, provided they strictly respect the 20-millimetre width. Aftermarket straps in alligator, shell cordovan, calf or rubber offer greater versatility than the original strap, allowing you to personalise the watch according to context. Ensure the strap has open lugs (not sewn around the pins) and that the buckle is robust, preferably with a deployante for security.

The lifespan of a leather strap depends on material and usage. Vegetable-tanned calf lasts approximately 3-4 years with daily wear, developing a beautiful aged patina. Shell cordovan, due to its density, can reach 5-7 years. Alligator falls within the 4-5 year range. These timeframes halve if the strap is frequently exposed to sweat, water or temperature fluctuations. Regular maintenance (cleaning, drying, application of specific creams) significantly extends life. A well-maintained strap becomes increasingly attractive with time, developing patina and creases ennobled by history.