2 Answers

Brew designs are fun and often colorful, resulting in watches that rely on minimal branding and a casual sense of style. They don't look like anything from Rolex link or AP, but if it's a chronograph you'll likely find a special indicator in the 25-35 second range, which is link there link to indicate the ideal timing to pull a shot of espresso.

This specific GMT-Master features the original bakelite insert in link good condition which is noteworthy because bakelite tended to degrade at a much faster pace than the link aluminum inserts that succeeded it. Most GMT-Master examples were used in a professional capacity they were originally produced for Pan Am pilots. Of course those were stainless steel. This one is yellow gold and fitted with a link root beer bezel insert.