Longines · Conquest Heritage
Strap for Conquest Heritage 40mm Pink Gold Black
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Conquest Heritage L1.645.8.52.4 (aka: L16458524)
Selected for the 20 mm lug width · workshop selection
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Black Calfskin Rally Watch Strap – Handmade in Milan€110
Red Suede Strap with Stitching — Milano Straps€90
Grand Cavalier Military Brown Leather Strap€120
The Conquest Heritage L1.645.8.52.4 (aka: L16458524), seen from the bench
Frequently asked questions
What is the lug width of the Longines Conquest Heritage L1.645.8.52.4?
The lug width of the Longines Conquest Heritage L1.645.8.52.4 is exactly 20mm. This measurement is taken between the inner shoulders of the lugs, and it is the essential parameter for selecting compatible watch straps. Do not confuse this with the distance between the outer lugs, which is greater. Precise measurement with a digital calliper ensures you avoid undersized or oversized straps.
Which strap is recommended for the Conquest Heritage L1.645.8.52.4 in rose gold?
For a Longines Conquest Heritage L1.645.8.52.4 in 18-carat rose gold, alligator straps in deep burgundy or brown are ideal, or shell cordovan with vegetable tanning. These materials respect the warm tone of the case and ensure aesthetic cohesion. For informal wear, a grey-taupe nubuck or a khaki NATO strap offers contemporary contrast without compromising elegance.
How do you change the strap on a Longines Conquest Heritage watch?
The strap is changed using a spring bar remover or a small flathead screwdriver. Locate the small metal springs (spring bars) at the ends of the lugs, gently compress the upper one to release the strap, then extract carefully. Insert the new strap by aligning the hole with the lug hook, and ensure the spring clicks securely on both sides. Avoid forcing to prevent scratching the case.
Is an aftermarket strap compatible with the Longines L1.645.8.52.4?
Yes, any strap with a 20mm lug width is compatible with the Longines Conquest Heritage L1.645.8.52.4. High-quality artisan straps in alligator, shell cordovan, calf leather and canvas NATO guarantee perfect fit. Always verify the lug width before purchase to avoid incompatibility, and choose leather thicknesses appropriate to the case (not too thick, which would weigh down the wrist).
How long does a leather strap last on a Longines watch?
The lifespan of a leather strap depends on usage, material quality and care. A high-quality alligator or shell cordovan strap with vegetable tanning lasts an average of 3–5 years in daily wear. Natural leather develops a patina and may show slight signs of wear, which add character. A standard calf strap lasts 2–3 years. Specialist craftsmen can extend service life through periodic restoration and refinishing; many artisan straps come with an 18-month warranty against manufacturing defects.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
