on television), before a baseball game between the Brooklyn Dodgers and Philadelphia Phillies over New York station WNBT (now WNBC). The announcement, for which the company paid anywhere from $4.00 () to $9.00 (), displayed a WNBT test card modified to look like a clock with the hands showing the time. The Bulova logo, with the phrase "Bulova Time", was shown in the lower right-hand quadrant of the test pattern while the second hand swept around the dial for one minute. In the 1940s, Bulova made a few examples of their complex four sided, five-dial per side "sports timer" analog game clock for use in NHL pro ice hockey games and for the nascent NBA pro basketball league of that time. They were put in indoor sports arenas such as Boston Garden, Chicago Stadium and the Detroit Olympia. The last example was taken out of service in Chicago in 1976, all replaced by digital-display game timepieces. In 1945, Arde Bulova, chairman of the board, founded the Joseph Bulova School of Watchmaking to provide training for disabled veterans after the Second World War. The school later became a full-fledged rehabilitation facility, an advocate for disabled people nationwide, and one of the founders of wheelchair sports in the United States. The school closed in 1993. In 1967, Bulova bought the Manufacture des Montres Universal Perret Frères SA at Geneva and sold it in December 1977. The factory in Biel was closed in 1983. Accutron Bulova's "Accutron" watches, first sold in October 1960, use a 360 Hz tuning fork instead of a balance wheel as the timekeeping element. The inventor, Max Hetzel, was born in Basel, Switzerland, and joined the Bulova Watch Company in 1948. The tuning fork was powered by a one-transistor electronic oscillator circuit, so the Accutron qualifies as the second "electronic watch", following the Hamilton Electric released in 1957. Instead of the ticking sound made by mechanical watches, the Accutron had a faint, high-pitched hum which came from the vibrating tuning fork. A forerunner of modern quartz watches which also keep time with a vibrating resonator, the Accutron was guaranteed to be accurate to one minute per month, or two seconds per day, considerably better than mechanical watches of the time. The Apollo 15 watch In the 1960s, the company was involved in a rivalry with Omega Watches to be selected as the 'first watch on the Moon'. In 1971,