Technical Archive

Longines
Conquest L3.430.5.72.6— lug 17mm

Longines Conquest L3.430.5.72.6: 17mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Conquest 34 Stainless Steel - Pink Gold / Silver / Bracelet

Artisanal Note

"This model requires a precise 17mm lug width to preserve the original sartorial balance."

Technical Specifications

Longines L3.430.5.72.6
Lug Width
17 mm

The essential strap measurement.

Browse 17mm straps →
Reference

L3.430.5.72.6

Movement

Longines caliber L888.5 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Conquest represents Longines' sports collection characterized by robustness and precision. It features the automatic caliber L888.5 with chronometer certification, indication of hours, minutes, seconds and date. It has 17mm lugs for the strap.

FAQ

What is the lug width of the Longines Conquest L3.430.5.72.6?

The Longines Conquest L3.430.5.72.6 features a 17 mm lug width. This measurement is the specific standard for this model and is essential for selecting a compatible strap. To verify the lug width correctly, measure the perpendicular distance between the two threaded lugs (also called spring bars or strap attachments) on the case, without any strap mounted.

Which strap is best suited for the Longines Conquest L3.430.5.72.6?

Given the 34 mm case diameter and rose gold/steel bicolour construction, alligator leather in grey or cognac tones offers the finest aesthetic balance. For a more robust and authentic approach, vegetable-tanned calf leather with natural patina enhances the watch's classical character. Shell cordovan is ideal if you seek extreme durability and chromatic evolution over time. Your choice depends on the intended use and personal colour preferences.

How do I change the strap on the Longines Conquest L3.430.5.72.6?

Strap replacement on this model is accomplished via threaded lugs on the case. Use a flat tool (such as a rubber ball or dedicated strap lever) to gently open the lugs, carefully removing the existing strap. Insert the new strap ensuring that the strap ends seat properly within the lugs, then close the lugs by rotating them by hand until locked. Avoid over-tightening to prevent damage to the threads.

Can I fit an aftermarket 17 mm strap on my Conquest L3.430.5.72.6?

Absolutely. Any strap featuring a 17 mm lug width is compatible with the Conquest L3.430.5.72.6, regardless of brand or material. It is advisable to select thicknesses between 3.5 and 4.5 mm to maintain balanced proportions relative to the 34 mm case diameter. Always verify exact measurements before purchase to avoid incompatibilities.

How long does a leather strap last on a watch like the Conquest L3.430.5.72.6?

Leather strap durability varies according to material type and usage patterns. Quality alligator, with moderate daily wear, maintains structural integrity for 3–4 years. Shell cordovan is considerably more durable, easily exceeding 5–6 years of intensive use. Vegetable-tanned calf achieves 2–3 years with regular care. Exposure to sunlight, moisture, and perspiration accelerates ageing. Periodic maintenance and rotating between multiple straps significantly extends product lifespan.