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

The lug width of the Longines Conquest V.H.P. L3.717.2.56.6 is 21mm. This measurement is calibrated to the 42mm case diameter and represents the optimal balance between aesthetic proportions and structural functionality. To verify compatibility, measure the distance between the two attachment holes on the case (inner edge to inner edge): it must be exactly 21mm.

Genuine alligator leather (natural fine grain) contrasts elegantly with the linear stainless steel case, creating aesthetic dialogue. For sport-oriented pairings, shell cordovan offers natural water resistance and noble ageing. Aniline or semi-aniline calf develops patina over time. For nautical contexts, vulcanised natural rubber allows quick changes and secure sealing. Your choice depends on primary usage and personal aesthetic sensitivity.

Remove the strap by detaching the lugs from the case: locate the elastic pins or fixed lugs positioned beneath the attachment points (at 12 and 6 o'clock). Using an appropriate tool (spring bar tool or fine calliper), slide the pin horizontally to release the lug. Once removed, insert the new strap's lugs into the case attachments and resecure the pins. Verify that the lug sits perfectly aligned before fully tightening.

Yes, any strap with a 21mm lug width is compatible. Artisan-crafted aftermarket straps offer personalisation in materials (alligator, calf, vegetable-tanned leather), colours and finishes that OEM markets often cannot provide. Ensure the selected buckle is stainless steel for corrosion resistance equivalent to the case, and that leather thickness (approximately 3.5–4mm) does not exceed the case's lug channel.

Longevity varies by material and frequency of wear. Standard aniline calf leather (chrome-tanned) typically lasts 2–3 years with daily use. Shell cordovan, renowned for structural density, exceeds 5–7 years. Alligator leather falls within the 3–4 year range. Conditioning every six months (neutral leather conditioner) extends lifespan by 20–30%. Wear is natural; the patina that develops is aesthetic value, not degradation.