Strap for Conquest 41 Automatic GMT

The Longines Conquest L3.687.4.76.6 features a 20-millimetre lug width. This specification delivers ideal proportionality for a 41mm case and ensures compatibility with the vast majority of contemporary artisanal straps. To verify the correct measurement, employ a calliper and measure perpendicularly between the two lugs that attach the strap to the case.

For the Conquest, we recommend three primary options: alligator for uncompromised elegance, vegetable-tanned calf for a patina that evolves over time, or technical rubber for resilient daily wear. Your choice depends on intended use: an alligator strap in black suits formal and business occasions, whilst rubber excels for those alternating between sport and daily activities. Vegetable-tanned calf represents the most versatile compromise, ageing with grace and character.

The process is straightforward: position your watch on a soft surface, locate the pins securing the strap to the lugs (typically accessible from the case back), and employ a dedicated pin removal tool to press the pin outward until it disengages. Once extracted, the strap detaches effortlessly. To install a new strap, reinsert the pins until they seat securely. Should you prefer professional assistance, Casati Milano provides in-atelier strap-change services.

Yes, the standard 20-millimetre lug width ensures compatibility with the overwhelming majority of quality artisanal and aftermarket straps. Milanostraps curates an extensive collection of 20mm straps, customisable in leather variety, colour, texture and closure type—from steel deployant clasps to traditional adjustable passants. Always verify lug width before ordering.

Longevity depends on material grade, usage patterns and maintenance discipline. A premium alligator strap endures 5–7 years under moderate wear; vegetable-tanned calf, if properly cared for, frequently exceeds 8 years whilst developing a captivating patina. Technical rubber demonstrates comparable lifespan but degrades more predictably. Casati Milano warrants 18 months on bespoke straps and recommends pin replacement when the strap exhibits evident stress. Regular maintenance—cleaning and prompt drying after moisture exposure—substantially extends longevity.