Longines
Conquest Classic L2.386.0.87.6— lug 17mm

The lug width of the Longines Conquest Classic L2.386.0.87.6 is precisely 17mm. This lug width represents the European standard for men's wrist watches with case diameters between 33 and 36mm. To verify compatibility, measure the metallic thickness between one lug shoulder and the other, excluding any protective overlays. This dimension is critical to ensure the strap enters correctly without vertical forcing that could compromise the attachment pins.

For the Conquest Classic, we recommend genuine alligator with crocodile grain for aesthetic coherence and the natural patina that develops over time. Alternatively, calf leather with vegetable tanning offers fine texture and neutral tonality perfect for classical elegance. Your choice depends on personal style: alligator offers more pronounced texture, whilst calf maintains formal restraint. For informal sporting contexts, a NATO strap or rubber elastomer preserves the instrumental character whilst maintaining the watch's formal dignity.

Strap replacement requires a specific tool called a spring bar remover. Position the tool beneath the internal attachment pin and push gently upward to compress the return spring. Once compressed, the pin extracts easily from its seat. Repeat on the other side. When reinstalling the new strap, ensure the pins enter the seats completely without unusual angles. If you lack confidence, contact Casati Milano atelier for professional replacement.

Yes, any strap with a 17mm lug width is compatible with the Conquest Classic. The aftermarket offers superior options to original Longines straps, particularly regarding precious materials such as genuine alligator and vegetable-tanned leather. At milanostraps.it you will find a selection of artisanal 17mm straps customisable in leather, colour, stitch thread and length. Casati Milano atelier also guarantees bespoke strap creation with personal leather selection and stitching thread choice.

The lifespan of a leather strap depends on material quality and frequency of use. High-quality alligator or vegetable-tanned calf can last 5-8 years in daily use, developing increasingly beautiful patina. Factors such as sun exposure, humidity and perspiration accelerate ageing, whilst vegetable tanning ages more elegantly than chemical tanning. A well-maintained strap, occasionally treated with specific conditioners, can exceed 10 years. The Casati Milano atelier warranty covers 18 months, during which manufacturing defects are resolved free of charge.