Longines · Conquest V.H.P.

Strap for Conquest V.H.P. GMT 41 Stainless Steel / Black / Rubber

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter41 mm
ReferenceL3.718.4.56.9 (aka: L37184569)
FamilyConquest V.H.P.
MovementLongines caliber L287.2 Hours, Minutes, Seconds, Additional 24 Hour Hand (adjustable) | Date | Connected
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Conquest V.H.P. L3.718.4.56.9 (aka: L37184569)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Conquest V.H.P. L3.718.4.56.9 (aka: L37184569), seen from the bench

The Longines Conquest V.H.P. L3.718.4.56.9 is a 41mm stainless steel sports watch featuring the L287.2 quartz movement, a calibre certified to ±5 seconds per year precision. The black dial includes luminescent indices and a 1/5-second bezel for professional timing. Water-resistant to 100 metres, it offers a 42-month battery life, independent 24-hour function, and date window. The 20mm lug width ensures universal strap compatibility.

Frequently asked questions

What is the lug width of the Longines Conquest V.H.P. L3.718.4.56.9?

The lug width of the Longines Conquest V.H.P. L3.718.4.56.9 is 20mm. This is a universal standard measurement that ensures compatibility with thousands of aftermarket straps. To verify the measurement, extract the spring bars from the case using a standard spring bar tool and measure the linear distance between the lugs in millimetres.

Which strap pairs best with the Longines Conquest V.H.P. L3.718.4.56.9?

Alligator leather in vegetable tanning is the ideal choice from both aesthetic and durability perspectives. A chocolate-brown or charcoal alligator amplifies the 1970s sporting heritage of the Conquest. Shell cordovan is the alternative for those seeking leather that visibly evolves over time, developing a reddish patina. Calf leather grain offers simplicity and robustness, whilst technical materials (NATO, ballistic nylon) are recommended for frequent use in humid environments.

How do you change the strap on the Longines Conquest V.H.P. L3.718.4.56.9?

The strap is changed by extracting the spring bars from the case lugs. Use a professional spring bar tool: position the bifurcated tip under the bar, gently press upwards until the internal spring retracts. Extract the bar, remove the old strap, insert the new strap between the lugs and reinsert the bar until it clicks into the resting position.

What aftermarket straps are compatible with the Longines Conquest V.H.P. L3.718.4.56.9?

All straps with a 20mm lug width are compatible with the Longines Conquest V.H.P. L3.718.4.56.9. On milanostraps.it you will find a comprehensive collection of 20mm straps in alligator, shell cordovan, calf, NATO and technical materials, customisable in sizes, initials and stitching thread.

How long does a leather strap last on the Longines Conquest V.H.P. L3.718.4.56.9?

The lifespan of a leather strap depends on usage, environment and care. An alligator strap in vegetable tanning, worn daily in a temperate environment, typically lasts 18–24 months before showing significant signs of wear. Shell cordovan, thanks to the density of its fibres, can last 24–36 months. Leather requires regular drying after exposure to perspiration or moisture. Technical materials (rubber, NATO) have superior durability, lasting up to 36–48 months.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only