Ritmo Mundo Men's 221 INDYCAR Series Black Stainless Steel Watch with Tire-Tread Strap Square black watch with round dial featuring gear-inspired overlay at face, three subdials, and ridged crown 46.5 mm black stainless steel case with mineral dial window Swiss quartz movement with analog display Black silicone band with tire tread-inspired texturing and buckle closure Water resistant to 100 m (330 ft)