Longines · Conquest Classic

Strap for Conquest Classic Automatic 29.5 Stainless Steel / Red Gold / White / Bracelet

Takes 15 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width15 mm
Case diameter30 mm
ReferenceL2.285.5.76.7 (aka: L22855767)
FamilyConquest Classic
MovementLongines caliber L592.2 hours, minutes, seconds | date | chronometer
Year2015 - 2020
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 Classic L2.285.5.76.7 (aka: L22855767), seen from the bench

The Longines Conquest Classic L2.285.5.76.7 is a 29.5mm women's watch combining stainless steel and rose gold materials. It features the automatic Longines caliber L592.2, a chronometer-certified movement with 28,800 oscillations per hour, maintaining precision of ±4 seconds per day. The model belongs to the Conquest line, originally launched in 1954, and is fitted with a 15mm lug width bracelet.

Frequently asked questions

What is the correct lug width for the Longines Conquest Classic L2.285.5.76.7?

The lug width of this model is precisely 15mm, measured between the vertical attachment points on the case. This dimension is non-standard for the women's Conquest line. Always verify with a digital calliper the internal distance between the metal shoulders before ordering a strap. A ±1mm error will render the strap incompatible.

Which strap is most suitable for the Longines Conquest Classic L2.285.5.76.7?

Alligator leather tanned in dark brown or cognac represents the most elegant choice, as its regular grain and supple texture harmonise perfectly with the rose gold-steel two-tone case. For daily versatility, vegetable-tanned calf offers a natural patina that develops character over time. Avoid NATO or rubber straps to maintain aesthetic coherence.

How do I change the strap on the Longines Conquest Classic L2.285.5.76.7?

Use a spring bar tool to gently push the bar inward inside the case lug, freeing one side of the strap. Repeat for the opposite side. Insert the new strap by aligning its hole with the spring bar and push until you feel the locking click. Perform this operation with extreme care to avoid scratching the case, preferably on a soft surface.

Can I use an aftermarket strap with this Longines model?

Yes, any strap with a 15mm lug width is compatible, regardless of brand. Milano Straps offers a curated selection of artisanal 15mm straps tested for this model, crafted from precious leather and constructed to sartorial standards. Always verify that the strap has standard Ø1.4mm spring bars and that its length suits your wrist.

What is the expected lifespan of a leather strap for the Longines Conquest Classic L2.285.5.76.7?

An artisanal alligator or vegetable-tanned calf strap typically lasts 3–5 years with daily wear, depending on factors such as humidity, sun exposure, and maintenance. The leather develops a natural patina that enhances its appeal. To extend durability, protect the strap from excessive moisture and occasionally apply a hydrating balm. Casati Milano provides an 18-month warranty on all 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