Reviving our jewelry-making roots, we've crafted a collection of men's jewelry inspired by our leading timepiece designs and crafted from the finest materials. DESIGN: The perfect piece for a powerful, bold look. This 8" tennis bracelet is made of black ruthenium-plated sterling silver links inset with 5MM black spinel, clasp is etched with Bulova signature tuning fork logo on both sides. FEATURES: Black Spinel, a rare gemstone believed to repel negativity while providing inspiration and empowerment.