Bulova Precisionist 98B142 The Precisionist lives up to its name by being one of the most accurate watches in the world. While most quartz watches are accurate to 15 seconds a month, Bulova’s Precisionist carries a slight variance of 10 seconds a year. Bulova achieves this by using its patented three pronged quartz crystal which vibrates at a frequency of 262.144 kHz. This frequency is...