Strap for Conquest Chronograph Automatic 44.5mm Black

The Longines Conquest L3.697.4.56.6 features a lug width of 22 millimetres. This measurement represents the distance between the inner shoulders of the two lugs on the case. When selecting a compatible strap, it is essential that the strap width matches exactly 22 millimetres at the contact points with the lugs. Do not confuse lug width with case diameter, which on the Conquest measures 41 millimetres.

For the Conquest L3.697.4.56.6, alligator straps in brown or black offer the most convincing aesthetic balance, maintaining the sporty elegance of the case. Alternatively, Tuscan leather with vegetable tanning develops a natural patina over time, ideal for those who appreciate leather ageing. For intensive maritime use, a rubber regatta-style strap or fabric NATO provides superior resistance to moisture and salt exposure.

The strap is changed through the spring bars that connect the strap to the case lugs. Using a dedicated spring bar tool, compress the bar slightly to release it from the lug, then extract both bars. Subsequently, insert the new strap's bars into the same lugs. The operation requires care to avoid scratching the case. If unfamiliar with the procedure, a professional watchmaker can complete it in minutes.

Yes, provided the strap is constructed for a 22-millimetre lug width. Artisanal compatible straps often offer superior construction quality compared to OEM Longines straps, allowing you to personalise the watch's appearance according to your colour and material preferences. Ensure the new strap has a secure deployant clasp in stainless steel or titanium, consistent with the Conquest's overall quality standard.

A quality leather strap, made from alligator or vegetable-tanned calf, typically lasts 3–5 years with moderate daily wear. Longevity depends on humidity exposure, sunlight, and wearing frequency. Vegetable-tanned leather develops a protective patina over time that enhances aesthetics but requires periodic conditioning. Rubber or fabric NATO straps last longer (7–10 years) as they are less sensitive to environmental factors. Proper maintenance—gentle cleaning and leather conditioning—significantly extends functional lifespan.