Strap for Conquest Chronograph Automatic 41mm Black Rubber

The lug width (strap width between lugs) of the Longines Conquest L3.662.4.56.2 is 21mm. This is the distance measured centre-to-centre between the suspension pins, and it determines compatibility with aftermarket straps. Always verify this measurement before purchasing a replacement strap to ensure proper fit.

The choice depends on intended use and personal preference. For formal elegance and long-term value, we recommend alligator or shell cordovan. For daily sportiness and durability, vegetable-tanned calf or vulcanised rubber perform excellently. All these materials are fully compatible with the 21mm lug width of this chronograph.

Strap change requires a specialist tool (spring bar remover) to lift the suspension pins from their seats. We recommend consulting a qualified craftsperson, such as Casati Milano, to avoid damage to the case or pins. The operation takes only minutes with proper experience.

Yes, provided the strap is designed for 21mm lugs. The artisanal, customisable straps from milanostraps.it are fully compatible: simply specify 21mm width and choose length, material, and thread colour according to your preferences.

Durability depends on material, frequency of use, and care. Vegetable-tanned calf lasts 2–3 years with moderate daily wear. Alligator and shell cordovan offer superior longevity (3–5 years), whilst rubber can last 5–7 years. Casati Milano provides an 18-month warranty with options for strap replacement under special conditions.