The precision wristwatch was born 100 years ago In 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. This major achievement by a small Rolex watch astonished the world and marked the advent of the modern precision wristwatch. Until then, such a certification, which attested to the highest chronometric precision, had generally been awarded only to large marine chronometers after extremely rigorous tests. Rolex Replica Cellini was the first…