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

The lug width of the Longines Conquest V.H.P. L3.717.2.66.9 is 20mm. This measurement represents the distance between the two suspension pins on the case and is determined by the watch's structural geometry. To verify it, measure with a digital calliper the distance between the inner edges of the lugs: the value must be between 19.8mm and 20.2mm. It is essential to use 20mm-specific straps to ensure correct mechanical coupling and wearing safety.

For the Conquest V.H.P. L3.717.2.66.9, alligator leather is the first choice: the natural medium-large grain texture offers structural resistance, excellent water-repellent capacity, and a patina that evolves naturally with use. Vegetable-tanned calf leather represents an excellent alternative for those desiring an initially soft hand and documented colour evolution. FKM rubber straps are ideal for marine and sporting environments due to total impermeability. Heavy-duty nylon NATO straps maintain the technical character of the model for continuous outdoor situations.

Changing the strap on the Conquest V.H.P. requires a straightforward procedure: remove the old strap by pressing downward on the suspension pin (the small metal lever inside the lug) and slide the strap out of the spring bar. Insert the new 20mm strap by aligning the hole with the spring bar and press until you feel the engagement click. Use a dedicated tool (spring bar tool) or consult a specialist to avoid damaging the case. Milano Straps offers pre-curved straps for smooth insertion.

Yes, provided the strap is specifically designated for 20mm lug width. Milano Straps and Casati Milano guarantee full compatibility with the Conquest V.H.P. L3.717.2.66.9 as they manufacture straps with correct lug dimensions (from 19.8mm to 20.2mm) and universal standard spring bars. Before purchasing, verify that the product sheet explicitly states '20mm lug width' and that a description of customisable total length is present. Casati Milano's bespoke straps are measured from photos or samples of your case to ensure perfect fit.

A quality leather strap (alligator or vegetable-tanned calf) mounted on the Conquest V.H.P. has an average lifespan of 3-5 years with daily use, considering natural wear in the buckle loop area. Durability depends on intensity of use, exposure to moisture, and cleaning frequency. Alligator straps, thanks to their dense fibrous structure, tend to last beyond 5 years even with moderate abrasion. Casati Milano guarantees 18 months on workmanship and offers regeneration services (re-stitching, thread replacement, finish restoration) to extend the strap's functional life. FKM rubber straps have virtually unlimited lifespan if protected from prolonged sun exposure.