Strap for Conquest 34 Stainless Steel - Diamond / MOP / Bracelet

The lug width of the Longines Conquest L3.430.0.87.6 is precisely 17 millimetres. This particular dimension requires a strap specifically manufactured for 17mm: using standard 18 or 20mm straps would result in aesthetic instability and abnormal pressure on the attachment pins.

The optimal strap depends on usage: a fine calfskin in chocolate brown or navy blue with écru stitching thread enhances the classical-sporting character whilst maintaining daily elegance. For technical use, a bordeaux alligator or charcoal grey rubber provides practicality and aesthetic authority without compromise.

The strap is changed by removing the two lateral metal pins that attach it to the case. Using a dedicated tool (spring bar tool), carefully lift the pin from one side, slide the old strap away, position the new strap aligning perfectly with the holes, then reinsert the pin. The procedure demands millimetric precision given the 17mm width.

Any strap constructed specifically for a 17-millimetre lug width is compatible. Quality artisanal straps in calfskin, alligator, vegetable tanning, rubber or NATO fabric are available online ready for dispatch or customisable in dimensions and stitching thread at specialised ateliers.

A quality calfskin strap has an average lifespan of 18-36 months in daily use, with patina naturally evolving over time. Alligator, being denser and more resistant, easily reaches 4-5 years. Longevity depends on humidity, sun exposure and wearing frequency. Specialised ateliers offer 18-month guarantees and maintenance services.