Sized at 37mm in diameter and just 9mm thick, the Portofino IW458104 carries IWC's Swiss Made designation in a round stainless steel case topped with a fixed bezel set with diamonds. The slate grey dial is arranged with Roman numerals and index hour markers, read by silver-tone hands beneath a scratch-resistant sapphire crystal — a combination that keeps legibility at the forefront while the diamond bezel contributes a quiet brilliance.
Power comes from an automatic movement — calibre 35111, derived from the Sellita SW300-1 — driving hour, minute, second, and date functions through an analog display. The case sits on an 18mm grey alligator leather strap, and the watch carries a 30-metre water resistance rating for everyday practicality.
Listed as a 2018 reference, this Portofino is offered with its original box and papers, making it a complete set for collectors and enthusiasts drawn to the understated character of IWC's dress-watch line.
