Longines
Conquest L3.180.0.87.6 (aka: L31800876)— lug 15mm
Longines Conquest L3.180.0.87.6 (aka: L31800876): 15mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 15mm lug width to preserve the original sartorial balance."
Technical Specifications
Longines L3.180.0.87.6 (aka: L31800876)The essential strap measurement.
Browse 15mm straps →L3.180.0.87.6 (aka: L31800876)
Longines caliber L595 Hours, Minutes, Seconds | Date
The Heritage
FAQ
What is the lug width of the Longines Conquest L3.180.0.87.6?
The lug width of the Longines Conquest L3.180.0.87.6 is 15 mm. This unconventional dimension is specific to this 29.5 mm feminine model and is measured as the internal distance between the two attachment pins. It is essential to verify this measurement with a digital calliper before ordering a strap, as using standard widths (14 mm or 16 mm) would result in instability or installation impossibility.
What is the best strap for the Longines Conquest L3.180.0.87.6?
The best strap choice depends on usage and aesthetic preferences. Alligator represents the luxury solution, developing elegant patina over time; vegetable-tanned calf leather offers softness and durability; a silk-cotton NATO strap provides contemporary versatility; vulcanised rubber ensures technical performance. All these materials are available in 15 mm lug width from Milano Straps, with customisation options and 18-month warranty from Casati Milano atelier.
How do I change the strap on the Longines Conquest L3.180.0.87.6?
Strap replacement is performed by removing the springbars, requiring a dedicated tool (spring bar tool). Position the tool on the small slot beneath the pin, apply pressure to release the internal spring, and extract the old strap. The new 15 mm strap is inserted while keeping the pins parallel until fully seated in both lugs. If inexperienced, we recommend the service at Casati Milano to avoid damage to the case.
Can I use quality aftermarket straps on the Longines Conquest L3.180.0.87.6?
Yes, quality artisanal aftermarket straps are fully compatible and often superior to original straps in terms of aesthetics and durability. Milano Straps offers an extensive selection of 15 mm straps crafted in alligator, vegetable-tanned calf, and other premium materials, customisable in sizing, colours, and details. Casati Milano atelier also creates bespoke straps with direct design consultation and material selection.
How long does a leather strap last on the Longines Conquest L3.180.0.87.6?
The lifespan of a leather strap varies by material type and usage. A quality artisanal alligator or calf strap typically lasts 3-5 years in daily wear, developing patina that enhances aesthetics. Critical factors are exposure to moisture, heat, and perspiration. Milano Straps provides straps with 18-month warranty from Casati Milano. We recommend rotating multiple straps and regularly cleaning the leather with a soft cloth to extend longevity.