Longines · Conquest

Strap for Conquest Chronograph Quartz Jumping 41 Stainless Steel / Black / Bracelet

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter41 mm
ReferenceL3.701.4.56.6 (aka: L37014566)
FamilyConquest
MovementLongines caliber L441.2 hours, minutes, small seconds | date | Chronograph, Rattrapante
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 L3.701.4.56.6 (aka: L37014566)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Conquest L3.701.4.56.6 (aka: L37014566), seen from the bench

The Longines Conquest L3.701.4.56.6 is a 41 mm stainless steel sports chronograph with 100 m water resistance and Longines caliber L441.2 quartz movement featuring chronograph and rattrapante function. The watch includes a unidirectional rotating bezel, sapphire crystal, and date window. The 21 mm lug width is specifically designed for robust masculine wrists.

Frequently asked questions

What is the lug width of the Longines Conquest L3.701.4.56.6?

The lug width is 21mm. This dimension is specific to the Conquest model and must be respected precisely when selecting a replacement strap. You can verify it by measuring the internal space between the upper and lower attachment pins on the case.

What is the best strap for the Longines Conquest L3.701.4.56.6?

For this stainless steel model, we recommend alligator with vegetable tanning for elegance, aged calf leather for natural patina development over time, or high-quality FKM rubber for sporting versatility. Your choice depends on your intended use: formal, daily wear, or adventure. All require 21mm width.

How do I change the strap on a Longines Conquest?

The Conquest uses a standard spring bar attachment system. Use a spring bar tool to gently push the pin inward, creating space to extract it. Insert the new strap by aligning the pins with the holes on the case, then release the pin until it clicks into place. Avoid sudden blows that could damage the case.

Can I use a quality aftermarket strap on a Longines Conquest?

Yes, provided it respects the 21mm width and offers construction quality consistent with the watch's value. An artisanal strap in alligator or shell cordovan can actually enhance the Conquest, as long as stitching is precise, the buckle or deployante is robust, and everything is built to appropriate tolerances.

How long does a leather strap last on a watch like the Conquest?

Leather strap longevity depends on tannery quality and usage patterns. A quality alligator or calf leather with vegetable tanning typically lasts 3-5 years with daily wear. Shell cordovan endures even longer, up to 7-8 years. Factors such as perspiration, sun exposure, and frequency of wear accelerate degradation. Periodic maintenance—gentle cleaning and conditioning—extends lifespan.

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