parachrom
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+ | ====== Parachrom ====== | ||
+ | **Parachrom** is a spring alloy patented and manufactured by [[Rolex]] noted for its anti-magnetic properties and durability. | ||
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+ | ===== Overview ===== | ||
+ | Parachrom is a metal developed by Rolex for use in [[hairspring]]s. It is an alloy of niobium and zirconium with an oxide coating. It is said to be completely unaffected by [[Magnetic field protection|magnetic fields]] and is able to withstand shocks better than conventional [[hairspring]]s. [[Rolex]] uses Parachrom in [[balance spring]]s ([[Breguet hairspring]]). The name "Para Chrome" | ||
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+ | Rolex introduced Parachrom in [[2000]] in [[Rolex 4130|Cal. 4130]] used in the [[Rolex Daytona 116520|Daytona Ref. 116520]]. In [[2005]], Rolex modified the surface structure of the material, thickening it and giving it a blue color. The result was **Parachrom Blu** (often called **Parachrom blue**), which was used in the updated Daytona as well as [[Rolex 3186|Cal. 3186]] in the [[Rolex GMT-Master II 116710|GMT-Master II Ref. 116710]]. Since then, use of Parachrom Blu has spread to many of the Rolex movement families, including [[Rolex 3187|Cal. 3187]], [[Rolex 4160|Cal. 4160]] in the [[Rolex Yacht-Master II|Yacht-Master II]], and [[Rolex 3131|Cal. 3131]] in the [[Rolex Milgauss]] adopted Parachrom as well. | ||
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+ | ===== References ===== | ||
+ | *[[http:// | ||
+ | *[[http:// | ||
+ | *A Rolex Lexicon, WatchTime, October 2012 | ||
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+ | ===== Video ===== | ||
+ | * [[Rolex Parachrom blue Video]] | ||
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+ | {{tag> | ||