The IWC Portofino Steel Diamond Grey Dial 37mm Ref. IW458104 presents a refined 37mm stainless steel case topped with a diamond-set bezel, offering a blend of understated luxury and everyday versatility. The elegant grey dial features applied index markers and is housed beneath a sapphire crystal, ensuring both clarity and durability. This timepiece is powered by the selfwinding Calibre 35111, delivering a reliable 42-hour power reserve and supporting hours, minutes, central seconds, and date functions. The grey alligator leather strap adds a sophisticated, monochrome aesthetic that complements the steel case and diamond accents, secured with a stainless steel pin buckle. With water resistance to 30 meters, the Portofino IW458104 is designed for both daily wear and dress occasions, providing a balanced combination of classic design, practical complications, and high-quality finishing.