Strap for Conquest 41 Chronograph Quartz Stainless Steel / Blue / Bracelet

The lug width of the Longines Conquest L3.700.4.96.6 is 21mm. This dimension must be measured from the inner edge to the inner edge of the seat where the strap is inserted. It is essential to verify this measurement with precision before ordering a handcrafted strap, as standard 20mm models will be too tight at the lugs, whilst 22mm straps will introduce unwanted play.

The choice depends on intended use: for formal occasions and elegant everyday wear, alligator with modern tanning offers evolving patina and natural elegance. Vegetable-tanned calf leather provides a grain that harmonises perfectly with the brushed stainless steel case texture. For those utilising the chronograph in sporting and aquatic environments, shell cordovan combines superior durability with refined aesthetics. NATO fabric offers daily versatility, whilst vulcanised rubber remains the technical choice for recreational diving.

The strap is changed using a spring bar removal tool. Position the tool horizontally beneath the lug, pushing gently upwards until the internal spring mechanism is fully compressed. Once the bar is released, extract the old strap. Repeat at the other lug. For installation of the new strap, insert the spring bar into its seat, then use the removal tool to gently compress the spring whilst positioning the strap, until the bar is fully seated. Verify that the strap is perpendicular to the case.

Yes, the Conquest L3.700.4.96.6 is entirely compatible with quality aftermarket straps, provided they respect the 21mm lug width specification. Handcrafted straps from milanostraps.it are specifically produced in premium leather—alligator, calf, shell cordovan—and permit customisation in length, monogramming and thread colour selection. The Casati Milano atelier also creates bespoke straps with artisanal tailoring and 18-month warranty.

The lifespan of a leather strap depends on material, frequency of wear and maintenance. An alligator or shell cordovan strap, with regular care and protection from excessive moisture, typically lasts 5–8 years. Vegetable-tanned calf, if exposed to direct sunlight and humidity, may require replacement within 3–5 years, though it develops a fascinating natural patina. Vulcanised rubber straps maintain elasticity for 7–10 years. The 18-month warranty offered by Casati Milano covers manufacturing defects, whilst natural leather ageing is a desirable consequence of wear.