Strap for Conquest V.H.P. Chronograph 42 PVD / Carbon / Bracelet

The lug width of the Longines Conquest V.H.P. L3.717.2.66.6 is 20mm. This measurement defines compatibility with aftermarket straps: a 20mm strap will insert into the lugs with correct engagement, without lateral play or forcing. Accurate measurement is taken by measuring the internal distance between lug edges using a digital calliper.

The best strap depends on usage context. For formal elegance, we recommend vegetable-tanned alligator in dark brown or black, 1.2–1.4mm gauge. For daily versatility, vegetable-tanned calf in cognac or vintage green tones develops natural patina over time. For sporting pursuits, vulcanised rubber or NATO straps provide maximum durability and easy maintenance. Casati Milano atelier personalises each choice with direct consultation.

Strap replacement requires specialised tools: a spring bar remover (lever for lug springs) and a clean work surface. Position the watch on a stable base, insert the lever under the lug, release the internal spring, and slide the strap out of the case. Repeat for both sides. Insert the new strap, aligning it with the lugs, then re-engage the springs by pressing until they click. If inexperienced, consult a watchmaker or use authorised retailer strap-change services.

Yes, any strap with a 20mm lug width is compatible with the Conquest V.H.P. L3.717.2.66.6. Aftermarket straps in alligator, calf, rubber, or fabric allow complete personalisation without compromising fit. Verify that strap thickness does not exceed 3.5mm to ensure smooth insertion into the lugs. Artisanal straps from milanostraps.it are specifically tested for compatibility with this measurement.

Leather strap longevity depends on tanning quality, gauge, and usage patterns. A vegetable-tanned alligator strap typically lasts 3–5 years with daily wear, developing an aesthetic patina throughout. Vegetable-tanned calf has comparable longevity, 3–4 years, with regular maintenance (gentle cleaning, protection from excessive perspiration). Straps crafted from high-gauge vegetable-tanned leather (1.4mm) maintain structural integrity longer. The 18-month warranty from Casati Milano covers construction defects; natural leather wear is an expected and cherished process among enthusiasts.