Rubber B is the ultimate upgrade for your Luxury timepiece. Rubber B products are made from the absolute highest caliber material available: pure, genuine Vulcanized Rubber, with no blends, coatings, glues, or bondings. Each integrated Rubber B is micro-calibrated around the exact watch model(s) for which it has been precisely designed, and has been engineered using “”Blocked Integration””, establishing a motionless, motionless, gap-free mount to your spring bars, watch case, and lugs. As the UL