Longines
Conquest Heritage L1.649.4.72.2— lug 19mm

The lug width of the Longines Conquest Heritage L1.649.4.72.2 is 19mm. This dimension is specific to this model and represents an exception to the more common industrial standards such as 18mm or 20mm. Always verify the measurement between the lugs of the case before ordering an aftermarket strap.

Alligator leather in vegetable tanning is the most coherent choice for the Conquest Heritage's identity. Its deep and regular grain harmonises perfectly with the 38mm case, conferring elegance and allowing a natural patina to develop over time. For sporty wear, calf leather or a NATO offer daily versatility. Rubber remains ideal for humid environments or occasional water activities.

The strap change is accomplished by removing the spring bars that connect the strap to the case lugs. Use a dedicated tool to avoid scratching the case. Insert the new strap by aligning the holes at each end with the spring bars, ensuring they are fully seated. If you are not experienced, consult a watchmaker or contact the Casati Milano atelier for professional service.

Yes, you can use a quality aftermarket strap of 19mm width compatible with this model. Verify that the width is exact (19mm) and that the material thickness is not excessive, to avoid play between the strap and the lugs. Milanostraps offers artisanal 19mm straps customisable in length, colour and constructive details.

An artisanal quality leather strap, such as alligator or vegetable-tanned calf, has an average lifespan of 3–5 years with daily use, provided regular maintenance (drying after immersion, protection from excessive sunlight). The standard warranty is 18 months. Rubber straps last longer (5–8 years) but require periodic cleaning nonetheless.