Strap for Conquest Classic Quartz 34 Stainless Steel / Black

The lug width of the Longines Conquest Classic L2.386.4.52.6 is 17 mm. This measurement represents the distance between the two spring bars that attach the strap to the case. It is essential to measure precisely before ordering an aftermarket strap, as a 16 mm strap will leave unacceptable lateral play and an 18 mm strap will not fit into the lugs.

For a watch with the sport-elegant characteristics of the Conquest Classic, we recommend alligator in vegetable tanning, which offers regular texture and natural softness. Shell cordovan is an audacious alternative for those who appreciate progressive patina development. Calf leather in vegetable tanning remains the versatile and reliable choice. Rubber and NATO straps are discouraged, as they would flatten the watch's vintage proportions.

To change the strap, you must remove the two spring bars (metal bars that secure the strap to the case lugs). Use a dedicated strap removal tool or a small flathead screwdriver to gently push the bars downward until they release from the lugs. Remove the worn strap and insert the new one by aligning its ends into the attachment holes, then reposition the spring bars until they click into place.

Yes, a 17 mm strap is compatible with any watch fitted with 17 mm lugs. However, always verify the exact measurement on your watch's case using a digital calliper before purchasing. Many vintage sports watches and some modern models use this measurement, but each manufacturer has specific construction specifications.

A quality leather strap (alligator, shell cordovan, or calf in vegetable tanning) has an average lifespan of 3–5 years with daily use, depending on: frequency of wear, climate conditions (humidity and heat accelerate wear), maintenance, and quality of the tanning process. Vegetable tanning ages better than chrome tanning, developing a fascinating patina. Casati Milano offers an 18-month warranty on handcrafted straps.