Longines · Conquest V.H.P.

Strap for Conquest V.H.P. GMT 43 Stainless Steel / Carbon / Rubber

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
ReferenceL3.728.4.66.9 (aka: L37284669)
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. L3.728.4.66.9 (aka: L37284669)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Conquest V.H.P. L3.728.4.66.9 (aka: L37284669), seen from the bench

The Longines Conquest V.H.P. L3.728.4.66.9 is a 43mm stainless steel sports chronograph featuring the L287.2 quartz movement with V.H.P. (Very High Precision) technology, guaranteeing ±5 seconds annual accuracy. The GPD system automatically corrects accidental hand displacement from impacts. It includes a 24-hour hand, date window, and sapphire crystal. The 22mm lug width accommodates custom straps for this model.

Frequently asked questions

What is the lug width of the Longines Conquest V.H.P. L3.728.4.66.9?

The lug width of the Longines Conquest V.H.P. L3.728.4.66.9 is 32mm. This measurement represents the internal distance between the two spring bars that support the strap. To verify it correctly, use a calliper or ruler and measure the internal space between the bars: it must be exactly 32mm to ensure compatibility with aftermarket artisanal straps.

Which strap is best for the Longines Conquest V.H.P.?

For the Conquest V.H.P., we recommend alligator leather for structured elegance, which enhances the contrast with the stainless steel case. Shell cordovan offers superior tactile density and a natural patina that develops over time. Calf leather with vegetable tanning provides softness and sustainability, perfect for daily wear. For aquatic environments or intensive use, premium rubber remains the most versatile and performant solution.

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

Changing the strap on the Conquest V.H.P. is a simple operation: locate the horizontal spring bars that run through the lugs on both sides of the case. Use a spring bar tool to gently press the elastic bars inward, releasing the old strap. Insert the new 32mm strap, ensuring the bars engage correctly in the seats. Verify tension: the strap should not rotate around the bars.

What aftermarket strap is compatible with the Conquest V.H.P. L3.728.4.66.9?

Any strap with a 32mm lug width is compatible with the Conquest V.H.P. L3.728.4.66.9. On milanostraps.it you will find the entire collection of 32mm artisanal leather straps, premium fabric, rubber and composite materials. Each strap is customizable in custom lengths, initials and thread colour to fit your wrist perfectly and match your style.

How long does a leather strap last on a Longines watch?

A high-quality leather strap has an average lifespan of 3-5 years with regular daily use, extendable to 7-10 years with proper care and rotation with other straps. Shell cordovan tends to last longer thanks to its superior fibre density. Alligator and vegetable-tanned calf offer balanced robustness. Avoid prolonged exposure to water and humidity, clean regularly with a soft cloth, and consider periodic protective treatments to maximise longevity.

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