Blue does the work on this Portuguese Automatic
IW500710 asks the buyer to choose a dial color and a proportion at the same time. The 42.3mm case gives the blue dial a broad, open field, so the color remains visible even when the watch is worn with a jacket. Two subdials and a date window add structure, yet the face stays less busy than a chronograph. That balance is the appeal: enough detail to keep the dial from reading flat, with enough empty space that the blue remains the first impression.
The black leather strap is a sensible counterweight. It frames the dial and keeps the watch formal, which helps a larger case avoid looking casual or sporty. This is a better match for office wear, tailored clothing and a smart-casual dinner than for someone looking for a compact, low-profile dress watch. The case size should be treated honestly. A 42.3mm formal watch can look balanced on one wrist and broad on another, so compare its span with a watch you already know before treating the photographs as a sizing guarantee.













