Longines · Conquest

Strap for Conquest 34 Stainless Steel / Ice Blue / Bracelet

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
ReferenceL3.430.4.92.6
FamilyConquest
MovementLongines caliber L888.5 hours, minutes, seconds | date | chronometer
Year2024
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Conquest L3.430.4.92.6, seen from the bench

The Longines Conquest mounts the automatic caliber L888.5 with chronometer certification and indication of hours, minutes, seconds and date. The case features 17mm lug width for the strap. The movement guarantees chronometric precision according to COSC standards.

Frequently asked questions

What is the exact lug width of the Longines Conquest L3.430.4.92.6?

The lug width of the Longines Conquest L3.430.4.92.6 is precisely 17 millimetres. This measurement is standard across all Conquest models in the 34 mm case size and is critical when selecting a compatible replacement strap. Lug width is measured by positioning a digital calliper perpendicular to the two metal lugs protruding from the case: the value must be exactly 17 mm. No tolerance is permissible—an oversized strap will not fit, whilst an undersized one will slide laterally.

Which strap material is most suitable for the Longines Conquest L3.430.4.92.6?

For the 34 mm Conquest L3.430.4.92.6, four materials are recommended. Genuine alligator leather is the formal choice par excellence, featuring fine grain and noble ageing. European vegetable-tanned calf offers robustness and tactile breathability, ideal for daily wear. Shell cordovan, sourced from horse rump, represents the pinnacle of density and durability, developing a deep patina over time. Finally, high-density canvas NATO strap is an authentic and contemporary sporting option. Material selection depends on intended use and personal aesthetic preference.

How do you change the strap on a Longines Conquest L3.430.4.92.6?

The strap on the L3.430.4.92.6 is replaced by extracting the spring bars connecting the lugs to the case. Using a dedicated tool, push the spring bars inward and remove the worn strap. Align the new strap with the lugs and re-insert the spring bars by applying pressure until they lock with an audible click. The operation takes approximately two minutes and requires no specialist technical expertise. If uncertain, consult a professional watchmaker to prevent case damage.

Is the Longines Conquest L3.430.4.92.6 compatible with third-party replacement straps?

Yes, the L3.430.4.92.6 is compatible with any strap featuring a 17 mm lug width, regardless of manufacturer. The critical factor is verifying that the internal lug width is precisely 17 millimetres and that overall length is suitable for your wrist—typically 75–80 mm for the watch end and 120–130 mm for the free end. Bespoke artisanal straps offer personalisation in leather, monogram initials, thread colour and buckle style, providing infinite aesthetic combinations beyond the original equipment.

What is the average lifespan of a natural leather strap for the Longines Conquest L3.430.4.92.6?

A high-quality natural leather strap, constructed using traditional sartorial methods, maintains functional efficiency and aesthetic appeal for 3–5 years of daily wear, except in corrosive environments or chronic water exposure. Vegetable-tanned leather ages more gracefully than industrially-tanned variants, developing distinguished patina. Shell cordovan exceeds this estimate with even more refined ageing. Longevity depends on frequency of wear, climate conditions and periodic maintenance with natural conditioning oils. A well-maintained strap may be regenerated by a sartorial craftsman, extending functional lifespan by a further 2–3 years.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only