Swiszone Watches Operating System: Works with precise quartz movement (battery). Materials: The case is made of stainless steel, and the strap comes in either metal, leather, or high-quality silicone. Water Resistance: Supports water resistance for light daily use (like hand washing). Designs: Classic and square (similar to Cartier), available in different sizes (most notably 32mm and 35mm) suitable for men and women.