Strap for Conquest Heritage 38 Stainless Steel / Black

The lug width of the Longines Conquest Heritage L1.649.4.52.2 is 19 millimetres. This measurement represents the exact distance between the lateral lugs (spring bar holders) of the case, and it determines which strap width is compatible with your watch. You can verify this measurement using a digital calliper, positioning it between the two lugs without forcing. A 19 millimetre lug width is not particularly common, which makes sourcing a dedicated strap even more important for maintaining proper aesthetic proportions.

The best strap depends on your intended use and personal preference. For formal occasions, we recommend alligator in cognac brown or deep black, whose geometric grain texture complements the vintage linen dial perfectly. Vegetable-tanned calf leather represents an excellent alternative if you desire a natural patina that evolves over time. For a sportier or more casual approach, rubber or NATO straps ensure comfort and resilience. The essential factor is selecting a 19 millimetre width to maintain proper proportions with the 38 millimetre case.

The Conquest Heritage, like most sports watches, is equipped with lugs featuring removable spring bars. To change the strap, use a dedicated tool (a spring bar tool or a pointed pin) to gently push the spring bar inward from one side, creating sufficient space to remove the existing strap. Next, insert the spring bar of your new strap into the lug opening and release the spring, ensuring it seats correctly in both holes. Avoid sudden movements that could damage the case or spring bar.

Yes, absolutely. The Longines Conquest Heritage L1.649.4.52.2, thanks to its standard 19 millimetre lug width, is fully compatible with bespoke aftermarket straps. Atelier Casati Milano offers custom-made straps with choice of leather (alligator, vegetable-tanned calf, shell cordovan), option to add initials, selection of thread colour and 18-month warranty. This solution allows you to tailor the strap to your specific comfort and proportion requirements.

The lifespan of a leather strap depends on leather quality and intensity of use. A high-quality alligator or vegetable-tanned calf strap typically lasts between 3 and 5 years with moderate daily wear before the leather begins to show visible signs of deterioration (cracking, tearing). Factors such as sun exposure, humidity and perspiration significantly influence this duration. A well-maintained strap (regularly cleaned and stored dry) can substantially extend its life. Atelier Casati Milano warrants its straps for 18 months, covering any manufacturing defects within this period.