Boccia titanium mens chronograph watch with a black round dial, chronograph feature, date, white numbers, titanium case, matte titanium bracelet size: 41.5Mm diameter, 11mm thickness japanese quartz movement water-resistant to 10 bar (330 feet) hard mineral crystal 2-year warranty boccia watches are all solid titanium, not titanium plated. Titanium is non-allergenic and very friendly to the skin. When boccia watches come with a strap, the buckle is also solid titanium.