National Geographic : 1964 Nov
Your watch was destined to be wrong. Accutron is not. Old-faIshioned balance Accutron tuniling fork wheel isstill used in allwind, keeps v irtuall\ perfecttime self-wind, aind electric and comes withthe watches. it is not used in the list guarantee of accurailcy Acetronn mn ement. ever given. Sooner or later, the watch you have is going to take more or less than 24 hours to get through the day. This is because a watch is a small piece of machinery with parts that make other parts do things. Now, this is a clumsy arrangement, compared to the things they're doing with electronics these days. And the Accutron movement is electronic. 4g A battery sends power through a cir cult to operate a tiny tuning fork. Time is kept by vibrations of this tun g fork. There are 360 of these vibrations a second, which is splitting a second into pretty small pieces. You can imagine how precise a time piece this makes. We guarantee average daily accuracy within 2 seconds.* And that's just the guarantee. Many owners say their error isonly I second or none at all. And now the U.S. Government is using Accutron movements in satellites and has issued them to all X-15 pilots. They all seem to be pretty high on it. Accutron by Bulova. Model "602" shown, 18K gold case, $300 plus tax. Others from $125 plus tax. 'Your Accutron jweler will adjust accuracy to this tolerance, if necessary. Guarantee is for one full year. © Bulova Watch Co., Inc.