ABOUT A YEAR AGO, in celebration of the company’s 30th anniversary, Garmin introduced its Marq series of watches. Marketed as “luxury modern tools,” each watch is made of titanium with built-in smart features for different activities. The Marq Captain, for instance, is for boaters, with a regatta-timer bezel, coastal charts, tack assist, port conditions, and current wind speed, temperature and tide information. It also has a unique Jacquard weave strap from the south of France for use in saltwater environments. The other four Marq models—Driver, Aviator, Adventurer and Athlete—are similarly equipped for racing, flying, exploring and sports performance. ¶ Now, Garmin has put all five of the Marq watches together into the Signature Set. Only 100 of the numbered sets are available, each priced at $10,000. (Individually, each watch is…