Longines · Conquest Heritage

Strap for Conquest Heritage Pink Gold

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

Lug width22 mm
Case diameter35 mm
ReferenceL1.611.8.78.4 (aka: L16118784)
FamilyConquest Heritage
MovementLongines caliber L633.5 hours, minutes, seconds | date
CaseRose 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 L1.611.8.78.4 (aka: L16118784)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Conquest Heritage L1.611.8.78.4 (aka: L16118784), seen from the bench

The Conquest Heritage represents the modern reinterpretation of a classic Longines design from the 1950s. It is powered by the L633.5 caliber with hour, minute, second and date indication. The case features refined finishes with the crown and pushers integrated into the side profile.

Frequently asked questions

What is the lug width of the Longines Conquest Heritage L1.611.8.78.4?

The lug width of the Longines Conquest Heritage L1.611.8.78.4 is 22 millimetres. This measurement represents the distance between the watch lugs and is essential for selecting a compatible strap. Always verify that any strap you purchase is explicitly specified for 22mm fitment, as even minor deviations result in poor fit and potential instability.

Which strap is best suited for the Longines Conquest Heritage L1.611.8.78.4 in rose gold?

For the Longines Conquest Heritage L1.611.8.78.4 in rose gold, an alligator strap in dark brown or moka tone is ideal, as it complements the warm patina of the metal. Alternative premium options include vegetable-tanned calf leather, cognac shell cordovan, or formal black vegetable calf. Your choice depends on intended use: formal black for dress occasions, sophisticated brown for daily wear, and vintage-contemporary cordovan for balanced versatility.

How do I replace the strap on the Longines Conquest Heritage L1.611.8.78.4?

To replace the strap: 1) Place the watch face-down on a soft surface. 2) Use a spring bar tool (a small tool with fine tips) to gently lift one of the spring bars—the tiny metal pins inside the lugs. 3) Remove the old strap and insert the new one, ensuring both spring bars engage securely. 4) Repeat on the opposite lug. If you lack experience, consult a qualified watchmaker. Handle with care to avoid damaging the lugs.

Can I use aftermarket straps from other brands on my Longines Conquest Heritage L1.611.8.78.4?

Yes, you may use compatible aftermarket straps provided they fit the 22mm lug width specification. The finest aftermarket options for this model are handcrafted straps from specialised ateliers, as they offer superior build quality, precise finishing, and noble materials. Avoid generic or budget straps: a rose gold timepiece deserves a strap that honours the original investment and aesthetic intent.

How long does a leather strap last on the Longines Conquest Heritage L1.611.8.78.4?

Strap longevity depends on leather type and usage patterns. Vegetable-tanned calf leather typically lasts 3–5 years with moderate daily wear. Shell cordovan, being denser and more plastic-like, endures 5–7 years or longer, developing a beautiful patina over time. Alligator leather, more delicate, lasts 2–4 years under constant stress, but substantially longer if alternated with other straps. Proper maintenance—regular cleaning every six months, avoiding prolonged water exposure, and applying leather conditioner—extends lifespan significantly. An artisanal strap crafted from premium materials ages gracefully and can be professionally restored.

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