Longines · Conquest Heritage

Strap for Conquest Heritage Chronograph Yellow Gold

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

Lug width20 mm
Case diameter39 mm
ReferenceL1.641.6.72.4 (aka: L16416724)
FamilyConquest Heritage

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 Heritage L1.641.6.72.4 (aka: L16416724)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Conquest Heritage L1.641.6.72.4 (aka: L16416724), seen from the bench

The Longines Conquest Heritage Chronograph L1.641.6.72.4 is a 38.50mm yellow gold case chronograph watch with automatic movement Longines Caliber L688. The 20mm lug width accommodates standard medium straps. The watch features a clean dial with applied indices, Mercedes hands, and anti-reflective sapphire crystal on both front and caseback. Water-resistant to 50 metres, this Heritage model reinterprets the original 1954 Conquest sports chronograph design while maintaining authentic proportions and Swiss watchmaking precision.

Frequently asked questions

What is the lug width of the Longines Conquest Heritage L1.641.6.72.4?

The lug width is 20mm. This is the internal distance between the two lugs of the case. This dimension is crucial for purchasing compatible straps and remains constant across all examples of this Conquest Heritage family.

Which strap is recommended for the Longines Conquest Heritage L1.641.6.72.4?

The model pairs perfectly with straps in medium-grain alligator (cognac or black tones), vegetable-tanned calf, and robust fabric NATO. For those preferring a sporty look, a rubber or gum strap is also compatible. The choice depends on your dial variant and intended usage.

How do I change the strap on my Longines Conquest Heritage?

Use a spring bar tool or small plastic lever. Place the watch on a soft surface, insert the tool into the lug hole from underneath, push gently until the spring retracts, then remove the lug. Repeat for the other end. For installation, align the lug holes with the case holes and press until you hear a click.

Can I use an aftermarket strap from a different brand?

Yes, provided the strap is exactly 20mm in lug width. Always verify technical specifications before purchase. Quality straps from specialised brands (such as artisanal alligator or vegetable-tanned leather) guarantee superior comfort, durability, and aesthetics compared to generic straps.

How long does a natural leather strap last?

With proper care, a vegetable-tanned or alligator strap of quality lasts 3-5 years with daily use. Longevity depends on frequency of use, environmental humidity, and care applied. Occasional conditioning with leather-specific balm significantly extends the strap's life and preserves its natural patina.

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