Strap for Conquest 34 Stainless Steel / Mint Green / Bracelet

The lug width of the Longines Conquest L3.430.4.02.6 is 17 mm. This measurement is specific to Conquest models with a 34 mm diameter case and represents the internal distance between the two lugs where the strap must fit. Always verify the measurement with a calliper before ordering an aftermarket strap.

The best strap depends on intended use. For formal elegance, Nile alligator paired with a steel deployante is the uncompromised choice. For versatile daily wear, vegetable-tanned calf leather in dark brown or black offers natural patina and durability. For sport occasions, a textile NATO or FKM rubber strap ensures practicality and breathability.

The process is straightforward: use a spring bar tool (flat-tipped implement) to gently push downward on the spring bar beneath the lugs, creating sufficient space to slide out the old strap end. Repeat for the other end. Insert the new strap by reversing the process, ensuring the spring bar clicks firmly into place within the case. No specialised tools beyond the spring bar tool are required.

Yes, it is fully compatible. The standard 17 mm lug width accommodates any artisanal or industrial strap of that measurement. Always verify that the strap has been specifically manufactured for 17 mm and features appropriate holes or deployante sizing for your wrist (typically 16–20 cm for this model).

A high-quality natural leather strap (alligator or vegetable-tanned calf) lasts between 3 and 7 years under intensive daily use, depending on care and exposure to moisture, perspiration, and sunlight. Vegetable tanning typically outlasts chrome tanning. Clean your strap regularly with a soft, dry cloth and allow it to air dry completely if exposed to water. Rotating frequently among multiple straps significantly extends the life of each one.