The American Waltham Watch Company originally produced the Boston 461's pocket watch in Waltham, Massachusetts, in 1925 — the same year American inventor Richard Gurley Drew created masking tape. Drew invented this groundbreaking tape while working at the Minnesota Mining and Manufacturing Company, now the 3M Company. At the time in which Drew joined the 3M Company, it primarily produced sandpaper. He tested the company's Wetordry sandpaper at car shops, where he noticed a common problem: auto shops that painted their cars two different colors — a common style in the 1920s — had a hard time getting the paint perfect at the colors' border. In response, the acclaimed inventor created a light tape that wouldn't damage the car's paint job, enabling auto painters to color vehicles more accurately