An atomic watch is a wristwatch that is radio­-controlled to keep the most accurate time on earth. An atomic watch never needs to have its time or date set/adjusted because it receives a low ­frequency radio signal each night that keeps it perfectly synchronized with the US atomic clock in Colorado. The watch’s built ­in antenna searches once a day for the 60 kHz radio signal emitted from Ft. Collins and decodes the signal.. Read More

Accurate timekeeping supports much of our modern world. Global positioning systems, for example, need to be accurate to within about a billionth of a second in order to keep users from getting lost. Satellites for these systems rely on high precision measurements coming from atomic clocks at the U.S. Naval Observatory. GPS are also used for synchronizing digital networks like cell phones and the NTP servers needed to maintain the internet. An atomic clock.. Read More

The last few Blog posts have shown a Rolex mans movement during an overhaul. I thought it was about time that we showed you a nice ladies movement.  Today’s blog will focus on a ladies Rolex model #2235. The complete movement with both the automatic unit and rotor attached. Movement with rotor removed. Auto removed and showing train bridge, barrel bridge and ratchet wheel removed Barrel Bridge removed and a.. Read More

The First Automatic Chronograph to be Worn in Space For many years it was believed that the first automatic chronograph  to reach outer space was the Sinn 140 model worn by German astronaut Reinhard Furrer during the Spacelab D1 mission in 1985. The watch still is fairly popular with collectors and watch enthusiasts today because of this achievement. In 2007, though, a new revelation came to light that essentially retroactively negated much of the.. Read More

I get this same call at least once a month.  The customer just noticed that his watch has suddenly “fogged up” after he (took a shower, went swimming, got caught in the rain, etc) Most of the time they say that the watch has been perfect for “years” and has never done this before.  They have been showering, swimming etc. with it on and now are a bit puzzled as.. Read More

ETA designs and manufactures mechanical and automatic watches, watch movements  and is headquartered in Grenchen, Switzerland and is a wholly owned subsidiary of The Swatch Group Ltd.  Although the company produces finished watches and movements, ETA specializes in the production of ébauche movements used both in watches of sister Swatch Group subsidiary brands and in the watches of competitors.  With the exception of hairsprings manufactured by sister company Nivarox, ETA maintains.. Read More

Many old vintage watches—especially military watches—have gold or white-ish colored paint on their hands or the numbers on their dials.  This paint could potentially be made of a phosphorescent compound mixed with radium.  This compound would cause the hands/numbers to glow in the dark.  This type of mixture was often chosen over others because of the superiority of its glow and longevity—unlike any other glow-in-the-dark paints, the radium-mixed paint could.. Read More

Cars and watches are a natural fit. Both are traditionally mechanical, and both are products of complex and precise engineering. The watch itself has played an integral role in early motor racing. Early race car drivers wore bulky stopwatches strapped to their wrists to time laps and calculate speeds. Later driving watches had angled dials for easy reading without taking a hand off the wheel. Rolex Daytona For many, the love of watches.. Read More