Longines · Conquest Heritage

Strap for Conquest Heritage Chronograph Pink 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
ReferenceL1.641.8.72.4 (aka: L16418724)
FamilyConquest Heritage
MovementLongines caliber L650 Hours, Minutes, Small Seconds | Date | Chronograph
CasePink Gold

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 L1.641.8.72.4 (aka: L16418724)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Conquest Heritage L1.641.8.72.4 (aka: L16418724), seen from the bench

The Longines Conquest Heritage L1.641.8.72.4 is a contemporary reinterpretation of one of the Swiss maison's most emblematic sports chronographs, originally launched in the 1950s. It features a 38.50mm rose gold case with a 20mm lug width, powered by the automatic L650 Chronometer-certified movement offering hours, minutes, small seconds, date and chronograph functions. The vintage aesthetic—fluid lines, proportioned drum case, thin integrated bezel—combines classic-sport design with contemporary haute horlogerie.

Frequently asked questions

What is the lug width of the Longines Conquest Heritage L1.641.8.72.4?

The lug width of the Longines Conquest Heritage L1.641.8.72.4 is 20mm. This measurement is determinant for the overall aesthetics of the chronograph: it ensures a proportionate balance between the 38.50mm case and the strap, avoiding excessive thickness on the wrist. To verify it, place a digital calliper on the inner face of the case lug, measuring the distance between the two contact points.

What is the best strap for the Longines Conquest Heritage L1.641.8.72.4?

The best strap depends on usage and aesthetic preference. For a classic-sportive context, we recommend alligator in chocolate brown or burgundy tone, which enhances the soft lines of the case. For a more resilient alternative, vegetable-tanned calf develops a patina that evolves over time. Shell cordovan offers surface uniformity, whilst black rubber is ideal for pronounced sportive contexts. The tone should dialogue with the rose gold case.

How do I change the strap on the Longines Conquest Heritage L1.641.8.72.4?

To change the strap, proceed as follows: 1) Position the watch on a soft surface to avoid scratches; 2) Locate the small hole inside each lug; 3) Use a spring bar tool with a rounded tip to press the internal pin and loosen the spring; 4) Remove the old strap by pulling it downward; 5) Insert the new strap by aligning the holes; 6) Press with the tool until you hear a click indicating the spring is repositioned. If uncertain, consult a specialist watchmaker.

Is an aftermarket strap compatible with the Longines Conquest Heritage L1.641.8.72.4?

Yes, any strap with a 20mm lug width is perfectly compatible with the L1.641.8.72.4. Aftermarket straps of artisanal quality offer greater aesthetic variability compared to official Longines options. Always verify that the strap thickness does not exceed the case diameter and that the buckle or deployant maintains correct proportions for this reference.

How long does a leather strap last on a watch like the Longines Conquest Heritage L1.641.8.72.4?

The lifespan of a leather strap depends on the type and usage. A quality artisanal alligator strap resists 4–6 years of moderate daily use, whilst shell cordovan can exceed 7–8 years. A vegetable-tanned calf strap typically lasts 3–5 years. Continuous use, contact with salt water, perspiration and humidity reduce longevity. Patina and imperfections are normal; to extend life, clean periodically with soft cloths and apply natural balms specifically formulated for leather.

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