Strap for Conquest Chronograph Quartz 35

The lug width of the Longines Conquest L3.279.0.87.6 is 17 millimetres. This measurement must be verified from one lug tube to the other and represents the inner diameter of the strap passant. It is essential to respect this precision to ensure correct strap fit and adequate wrist adjustment without slipping or constriction.

For the Conquest L3.279.0.87.6, we recommend four primary categories: genuine alligator for formal elegance, aniline calf for natural patina development and visible texture, shell cordovan for durability and patina ageing, rubber or NATO fabric for daily sportive use. Your choice depends on intended application: formal occasions demand alligator, outdoor adventures suggest NATO or rubber.

The Longines Conquest L3.279.0.87.6 uses standard passant fittings: the strap slots into the lug tubes via lateral movement. Employ a spring bar tool to gently compress the internal elastic pin, allowing strap withdrawal. Never force the movement—it must be fluid and controlled. We recommend strap replacement in horizontal position, on a soft surface, to avoid scratches to the case.

Yes, any artisanal strap crafted with 17 millimetre lug width is compatible. However, to preserve the vintage aesthetic integrity of the model, we recommend straps respecting the original colour palette and non-invasive texture. Dark brown alligator or natural calf will maintain balance with the stainless steel case. Avoid straps with modern titanium buckles: the stainless steel deployante remains the most historically faithful solution.

A quality artisanal leather strap (alligator, calf, shell cordovan) lasts approximately 3–5 years with daily wear, or 5–8 years with rotation between multiple straps. Durability depends on climate, humidity, cleaning frequency and leather type. Vegetable tanning develops patina over time, enhancing appearance; chrome tanning offers superior resistance. We recommend alternating straps to extend each strap's lifespan.