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

The lug width of the Longines Conquest Classic L2.285.5.58.7 is precisely 20mm. This measurement represents the perpendicular distance between the left and right lugs. A 20mm strap will fit into the attachments without lateral play, ensuring optimal fit and long-term durability. It is recommended to measure with a digital calliper to avoid 0.5mm errors that would compromise proper seating.

Straps in dark brown alligator or vegetable-tanned calfskin are the most eloquent choices for this model. Alligator enhances the elegance of the two-tone case (steel and rose gold), developing patina over time. European calfskin offers tactile warmth and resilience. Shell cordovan guarantees exceptional durability for daily wear. NATO fabrics remain versatile options for those alternating formal and casual aesthetics.

Strap changing requires no specialised tools if your watch features standard spring bars. Use a spring bar tool to insert the tips into the lateral holes of the lugs, lifting slightly to disengage the spring bar. Remove the old strap by extracting the bar towards you. Proceed in reverse for the new strap, ensuring the spring bar is fully seated in the attachments. If inexperienced, consult a professional horologist to avoid lug damage.

All straps with a 20mm lug width are compatible with the L2.285.5.58.7. On milanostraps.it you will find artisanal straps in alligator, calfskin, shell cordovan and rubber, customisable in size, initials and stitching thread. The Casati Milano atelier crafts bespoke solutions in premium leather with personal consultation and 18-month warranty. Always verify compatibility by accurately measuring before purchase.

The durability of a leather strap depends on the tanning method and usage. Vegetable-tanned leathers (alligator, calfskin) have an average lifespan of 3-5 years with daily wear, developing natural patina. Shell cordovan resists 5-7 years thanks to the density of the hide. Technical rubber lasts 2-3 years before becoming brittle. Prolonged exposure to moisture, perspiration and ultraviolet light accelerates ageing. Maintenance with specific balms significantly extends strap lifespan.