Strap for Villeret 8 Jours Red Gold

The lug width of the Blancpain Villeret 6630-3631-55B is 23mm. This measurement is the distance between the spring bar attachment points on the case and requires specifically dimensioned straps. Verify the width by placing a millimetre ruler between the two upper attachment pins on the case.

For the 18-carat red gold of the 6630-3631-55B, we primarily recommend alligator in brown or burgundy tones, which emphasises the metal's warmth. Vegetable-tanned calf (tannic tannery) and shell cordovan are excellent alternatives for those seeking natural patina development over time. FKM vulcanised rubber remains viable for a sportier identity, though it contrasts with the watch's formal character.

Use a flat-tipped spring bar tool (non-dentated) to avoid scratching the case lugs. Insert the tool into the lateral access hole, apply gentle pressure to compress the pin, and slide the old strap laterally. Repeat on the other side. To fit the new strap, align the spring bars and insert them whilst simultaneously engaging both pins for symmetry.

No. Whilst generic 23mm straps exist, we recommend specifically dimensioned straps to avoid lateral play on the pins. The strap thickness must be proportionate (1.3–1.5mm for fine leather, 1.6–2mm for rubber), the inner width of the buckle or passants must accommodate the lug without slipping, and overall length must suit your wrists. Custom Casati Milano straps completely resolve this variability.

A high-quality alligator or vegetable-tanned calf strap, worn daily, typically lasts 3–5 years before requiring stitching regeneration or replacement. Longevity depends on humidity and temperature fluctuations, direct sunlight exposure frequency, and perspiration absorption. Preventive maintenance—monthly dry cleaning and natural conditioner application twice yearly—significantly extends strap life. Casati Milano offers an 18-month warranty on manufacturing defects and can regenerate worn straps through selective restitching.