Longines · Conquest

Strap for Conquest 41 Stainless Steel / Silver / 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
ReferenceL3.830.4.72.6 (aka: L38304726)
FamilyConquest
MovementLongines caliber L888.5 Hours, Minutes, Seconds | Date | Chronometer
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 L3.830.4.72.6 (aka: L38304726)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Conquest L3.830.4.72.6 (aka: L38304726), seen from the bench

The Longines Conquest L3.830.4.72.6 is a 41mm stainless steel sports watch rooted in the brand's 1950s explorer heritage. It features a quartz Longines caliber L888.5 movement with date, hours, minutes and seconds functions, offering ±15 seconds per month accuracy and a 48-month power reserve. The 316L stainless steel case measures 41mm in diameter with 11.2mm thickness, water-resistant to 300 meters, with a mineral crystal and unidirectional rotating bezel. The 21mm lug width ensures compatibility with standard aftermarket straps.

Frequently asked questions

What is the exact lug width of the Longines Conquest L3.830.4.72.6?

The lug width of the Longines Conquest L3.830.4.72.6 is 21mm. This measurement refers to the internal distance between the two case lugs. It should be verified with a digital calliper positioned perpendicular to the lugs to ensure compatibility with any aftermarket strap of this size.

Which strap is most suitable for the Longines Conquest L3.830.4.72.6?

The optimal choice depends on intended usage: vegetable-tanned fine-grain calf leather represents the ideal balance between elegance and sportiness, developing a noble patina over time. Alligator delivers maximum refinement for formal settings. For intensive use in humid climates, FKM rubber or NATO straps offer superior practicality and moisture resistance.

How do I change the strap on my Longines Conquest L3.830.4.72.6?

Strap replacement requires a few steps: remove the watch from your wrist, position a spring bar tool inside the lug from one side, gently push the spring bar until it extracts completely. Repeat on the other side. Insert the new strap by aligning the holes to the lugs, then reinsert the spring bars until you hear a click. If you prefer to avoid risks, consult Casati Milano for professional replacement.

Are 21mm aftermarket straps compatible with the Conquest L3.830.4.72.6?

Yes, all straps with 21mm lug width are fully compatible. However, we recommend verifying construction quality: lugs must be burr-free, holes perfectly aligned, and material without defects. milanostraps.it straps guarantee artisanal craftsmanship and quality inspection before shipment.

How long does a leather strap last on the Longines Conquest L3.830.4.72.6?

Lifespan depends on frequency of use, climate, and maintenance. A quality calf leather strap lasts an average of 3-5 years with daily use, up to 7-8 years with regular rotation. Alligator, more resistant to abrasion, reaches 10 years. Rubber lasts 4-6 years. Storing the strap away from direct light and excessive humidity significantly extends useful life.

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