Strap for Villeret Tourbillon 8 Jours Red Gold / Opaline

The lug width of the Blancpain Villeret 6025-3642-55B is 20 mm. This is the internal space between the two lugs of the case where the strap is inserted. To verify it, measure with a calliper the internal distance between the two case lugs: it must be exactly 20 mm. This measurement is essential for selecting a compatible strap and ensuring correct tension on the wrist.

For a Blancpain Villeret 6025-3642-55B in 18-carat rose gold, we recommend alligator with vegetable tanning (mahogany brown, black or dark moor) or shell cordovan in burgundy or dark brown shades. These materials develop natural patina over time, synchronising their ageing with the rose gold which naturally tends towards a burnt-reddish hue. Vegetable tanning is always preferable to chromium tanning to ensure natural breathing of the leather and coherent aesthetic ageing.

Changing the strap on the Villeret 6025-3642-55B requires two tools: a spring bar tool (lever for the spring bars). Turn the watch over with the wrist downwards, insert the flat lever into the hole of the lower spring bar of the lug, push gently until the spring bar retracts, and remove the strap. Repeat for the other side. Insert the new 20 mm strap by aligning the holes with the spring bars, press until the closing click. Operate with care to avoid scratching the rose gold case.

Yes, any strap with a 20 mm lug width is compatible with the Blancpain Villeret 6025-3642-55B, provided the strap is mounted on straight spring bars (not bent). Verify that the strap has been crafted for watches in this quality range: full grain leather, robust stitching, refined internal finishes. An artisanal strap guarantees superior durability and aesthetic evolution consistent with the prestige of the watch.

A high-quality alligator or calf strap with vegetable tanning, worn daily on a Villeret 6025-3642-55B, typically lasts 3-4 years before showing signs of wear (buckle deterioration, cracking at holes). Durability depends on exposure to moisture, sweat and temperature. Vegetable-tanned leathers develop natural patina over time and age elegantly. With periodic maintenance (cleaning, light conditioning), you can extend the life of the strap. Casati Milano offers an 18-month warranty against manufacturing defects.