The puma Cardiac Heart  Rate Monitor Digital watch comes in a sleek design with a futuristic  appearance that makes it perfect when navigating urban terrain. It is  packed with features like time, heart rate monitor and lap counter to  name a few. The heart rate monitor belt, that comes with this watch,  needs to strapped around your chest.  Case diameter : 30 mm Case thickness : 12 mm Dial shape : Square Warranty : 2 Years Plastic case with a fixed bezel for added durability, style and comfort Textured PU straps with a buckle clasp for comfort and style Black digital dial showing alarm-feature, chronograph, heart rate  monitor belt, calories burned, dual-time-display, perpetual-calendar,  timer, light, etc. Reset buttons Quartz movement of time display Acrylic dial window for scratch protection enhancing durability