Longines · Conquest

Strap for Conquest 34 Stainless Steel - Pink Gold / Blue / Rubber

Takes 17 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width17 mm
Case diameter34 mm
ReferenceL3.430.5.92.9
FamilyConquest
MovementLongines caliber L888.5 hours, minutes, seconds | date | chronometer
Year2024
CaseRose Gold, Stainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Conquest L3.430.5.92.9, seen from the bench

The Longines Conquest L3.430.5.92.9 is a 34 mm stainless steel and 18k rose gold case watch with a 17 mm lug width, rooted in 1954 design heritage. It features the Longines L888.5 automatic chronometer movement with hours, minutes, seconds, and date display, offering three days of power reserve. The hybrid case construction combines steel shoulders and caseback with rose gold crown and upper elements, balancing durability and precious metal presence.

Frequently asked questions

What is the exact lug width of the Longines Conquest L3.430.5.92.9?

The lug width is 17 mm, measured internally between the two anchor pins of the strap. This dimension is specified by the manufacturer and requires bespoke straps, as it does not fall within industrial standards (18 mm, 20 mm, 22 mm). To verify, use a digital calliper positioned horizontally between the lug holes.

Which strap do you recommend for the Longines Conquest L3.430.5.92.9?

For the Conquest L3.430.5.92.9, we recommend alligator in cognac or medium brown to complement the rose gold, or black alligator to emphasise the two-tone case contrast. For those seeking natural patina, vegetable-tanned calf in brown develops character marks that dialogue with the metal. For informal wear, dark grey cotton NATO offers practicality whilst maintaining elegance.

How do I change the strap on this Longines?

The strap is changed by removing the two horizontal pins that pass through the lugs. Use a spring bar tool: insert the tip into the slot beneath the pin, compress the internal spring, and extract the pin from the case. Repeat on the other side. Insert the new strap by aligning the hole with the pin and push until you hear the locking click. The operation requires care to avoid scratching the case.

Can I use an aftermarket strap compatible with my Longines Conquest L3.430.5.92.9?

Yes, provided the strap is constructed specifically for 17 mm lug width. Standard straps of 18 mm or larger will not insert correctly into the lugs. Always verify the exact dimension before purchase. Bespoke straps guarantee precise compatibility and superior construction quality compared to generic aftermarket options.

How long does a leather strap last on the Longines Conquest L3.430.5.92.9?

A quality alligator or calf strap has an average lifespan of 3–5 years with daily wear, varying according to humidity exposure, sunlight, and cleaning frequency. Naturally tanned leather tends to age by developing characteristic patina, which enhances perceived value aesthetically. Casati Milano guarantees 18 months on custom straps and provides restoration and buckle replacement services to extend the useful life of the piece.

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