Longines · Conquest

Strap for Conquest 29.5 Quartz Stainless Steel Diamond Bezel

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

Lug width22 mm
Case diameter30 mm
ReferenceL3.258.0.89.6 (aka: L32580896)
FamilyConquest
MovementLongines caliber L250 Hours, Minutes, Seconds | Date
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 L3.258.0.89.6 (aka: L32580896)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Conquest L3.258.0.89.6 (aka: L32580896), seen from the bench

The Longines Conquest features the L250 caliber with hour, minute, second and date indication. The watch has the L3.258.0.89.6 reference and belongs to the Swiss brand's sports collection. The movement offers essential functions for daily use with proven mechanical reliability.

Frequently asked questions

What is the lug width of the Longines Conquest L3.258.0.89.6?

The lug width is 22mm. This measurement corresponds to the distance between the spring bars that thread through the lugs of the case. It is essential to verify this measurement before purchasing a strap, as 22mm is not interchangeable with 20mm or 24mm. Measure the internal space between the two side spring bars for confirmation.

Which strap material pairs best with the Longines Conquest L3.258.0.89.6?

Alligator with vegetable tanning offers a natural patina and regular grain ideally suited to this model's classical aesthetic. Smooth calf leather in vegetable tanning ensures versatility and develops darker hues over time. For sportier options, NATO fabric or rubber transform the Conquest into a functional instrument watch. Shell cordovan in modest thickness provides deep lustre for those seeking rare materials.

How do I change the strap on the Longines Conquest L3.258.0.89.6?

Use a spring bar tool to gently insert the tip beneath the spring bar threading through the lugs, lifting slightly until the bar releases. Remove the old strap and position the new one by aligning the leather holes with the spring bars. Reinsert the bar until it clicks into position, verifying it is secured firmly on both sides. Avoid forcing to prevent damage to the lugs.

Are aftermarket 22mm straps compatible with the Longines Conquest L3.258.0.89.6?

Yes, any aftermarket strap with a 22mm lug width is compatible. Ensure that the leather thickness does not exceed the constructive limits of the lugs (typically between 2.5 and 3.5mm for this size). Artisanal straps are manufactured to precise specifications to guarantee perfect fit without excessive play or friction on the lugs.

How long does a leather strap last on the Longines Conquest L3.258.0.89.6?

Durability depends on material and usage. Calf or alligator leather with vegetable tanning typically lasts 3-5 years with daily wear, developing characteristic patina. Shell cordovan endures longer thanks to fibre density, up to 6-8 years. Vegan or synthetic leather offers inferior durability. A well-maintained strap, regularly cleaned and protected from excessive moisture, significantly extends its lifespan. Casati Milano provides an 18-month warranty on bespoke straps.

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