"This remarkable accuracy is normally expected of modern electronic timepieces, but the quartz watch on your wrist is probably only good enough to achieve a few

"This remarkable accuracy is normally expected of modern electronic timepieces, but the quartz watch on your wrist is probably only good enough to achieve a few seconds' accuracy a week. The Trinity clock with its various clever compensation systems is a remarkable testament to the importance of sound science and the longevity of good engineering." The quartz watch wasn't supposed to be more accurate than a tower clock. It was supposed to be more durable with about an equal accuracy. You can make a wristwatch more accurate at the expense of battery life, but you can't really wear a tower clock on your wrist!