Longines · Conquest V.H.P.
Strap for Conquest V.H.P. GMT 41 PVD / Black / Bracelet
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 V.H.P. L3.718.2.56.6 (aka: L37182566)
Selected for the 20 mm lug width · workshop selection
Vintage Black Calfskin Leather Strap€80
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Vintage Olive Green Calf Leather Watch Strap€80
Hammered Black Calfskin Strap — Ecru Stitching€98
The Conquest V.H.P. L3.718.2.56.6 (aka: L37182566), seen from the bench
Frequently asked questions
What is the lug width of the Longines Conquest V.H.P. L3.718.2.56.6?
The lug width is 20 mm. This measurement is critical for correct strap fitting: verify with a digital calliper that the value falls between 19.8 and 20.2 mm. The lug depth is approximately 2.5–2.7 mm, a parameter that influences the choice of strap thickness at the attachment point.
Which strap material is best suited to the Longines Conquest V.H.P. L3.718.2.56.6?
Choice depends on primary use: for sporty-elegant wear, select alligator in brown or grey with vegetable tanning; for daily professional use, fine-grained calf leather; for water sports and diving, FKM rubber with knurled texture; for seasonal versatility, a 2D high-density canvas NATO strap. The sunburst blue dial pairs particularly well with dark brown alligator and cream stitching.
How do I change the strap on the Longines Conquest V.H.P. L3.718.2.56.6?
Use a spring bar tool to remove the metal pin from the lugs. Insert the open end of the tool into the lateral slot, gently lift until the pin disengages from the spring, then extract the old strap. Align the new strap with the lugs and reinsert the pin, ensuring the locking click is audible. Never apply excessive force to prevent damage to the lugs.
Are aftermarket straps compatible with the Longines Conquest V.H.P. L3.718.2.56.6?
Yes, provided they meet the 20 mm lug width specification and 2.5–2.7 mm depth requirement. Bespoke, custom-tailored leather straps ensure superior fitment compared to mass-produced alternatives. Always verify tolerances before purchase and select suppliers offering compatibility guarantees.
How long does a leather strap last on the Longines Conquest V.H.P. L3.718.2.56.6?
Lifespan depends on material and wear intensity: vegetable-tanned alligator withstands 3–5 years of daily use, developing visible but controlled patina; quality calf leather 2–4 years; FKM rubber 5–7 years. Longevity increases significantly with periodic maintenance (cleaning, leather conditioning). Well-crafted artisanal straps develop characteristic patina rather than degrade.
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
