Gender: mens diameter: 45mm strap: 22mm water resistant to 330 feet (10 bar) this watch has a hard mineral crystal and a japanese quartz movement, the best quartz movement in the watch industry! Titanium chronograph watch with a black case, black face, white markers, and grey chrono dials. Date feature, black rubber strap. Luminous dial! 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. All boccia titanium watches come with a 2 year international watch warranty.