The Parachrom Blue Hairspring
Tuesday, March 16th, 2010
The parachrom hairspring has got people’s attention until it has been used in the GMT-Master II. James Dowling (Mr. Rolex) of timezone said that the parachrom blue hairspring was fitted to all Daytona’s 4130 movement in 2007.
Hairspring and balance form an oscillator which is really important to watch. It is the protector of watch’s precision. Traditional hairspring is iron-nickel-chromium base, so it is susceptible to magnetic fields and to shocks. In order to guarantee the precision of the watch no matter what terrible environment it is, people have to choose the very special and proper materials to make it.
New hairspring came out at this time. There were 2 patents for this innovation. One for the special alloy named parachrom which is niobium-zirconium-oxygen based, and the other is for the blue coloring which has been used to stabilize its properties. In the past, the blue hairspring can only be used in the most accurate and sophisticated watches.
The blue-colored version has been used in the new GMT-Master II and the Cosmograph Daytona. This patented “blue hairspring” has a more stable performance than people’ expectation.