Early Adoption of the Montgomery Dial: The Santa Fe Railway System Standard Dial
By 
Shortly after Henry S. Montgomery introduced his continuous marginal minute figure dial in 1899, the Santa Fe Railway System adopted the design as the company’s “Standard Dial.”
At the direction of Montgomery, the standard clocks at the railway stations were fitted with the new design, and custom dials were produced for watches in service on the railroad. These dials were marked “Santa Fe Railway System Standard Dial,” with the manufacturer’s name appearing above the seconds bit. Complying with Montgomery’s design, the marginal minute figures were arranged around the perimeter of the dial, with each five-minute indicator contrasting in a bright red color.
These dials represent the earliest form of the familiar Montgomery dial. In 1910, Mr. Montgomery introduced his dial design to the broader watch market as the “Safety Numerical Dial.”
I was just gifted a Waltham model 1899 produced in 1904 that has a Montgomery Safety Numerical Dial..Only Waltham watch I’ve seen wear the name Waltham is printed below center of the dial and the name Montgomery Safety Numerical Dial is above center of dial…I believe this is one of the first produced with this dial and assembled around 1910 even though movement was 1904… also Montgomery Dial Started in 1907 in Topeka Kansas home also to the ATSF railroad..so most definitely one of the first with this dial..pic of watch is located in Waltham database.