Bulova Precisionist Chronograph Tachymeter 200M 98B210 Men's WatchNo other watch shall give you an accuracy of a less than a second’s fluctuation a month. Not even with an atomic synching mechanism! For there also, the 3-point crystal is not going to be present, which means, an absence of higher frequency, the thing that makes the Bulova Precisionist the most accurate among watches in the world. The accuracy extends even to the chronograph; record 12 hours at a stretch, it won’t even flinch from correctly showing even 1 part from its 1000th division of a second!