Radiant Cleaner is "The Ultimate Watch and Clock Cleaner" because it makes parts clean and shiny at the same time. Radiant is rated as a high performance cleaner and is in a class of its own. After cleaning the cycle, metal parts sparkle. The concept of cleaning and having parts shine simultaneously took Zenith's chemists seven years to develop. Thanks to their knowledge of cleaning technology and expermentations, they arrived at the formula for Radiant. The Horological Industry always wanted a superior performing cleaner that would restore parts to their original luster, especially antique movements that have not been serviced for a long time. This revolutionary new concept that combines cleaning and making movements shine exceeded everyone's expectations. It is gentle enough not to attack the lettering on baked-on enamel coatings and yet strong enough to remove and dissolve hardened grease and oil from metal parts. Another outstanding feature about Radiant is its Low Odor. There is no longer any need for watchmakers to be exposed to harmful ammonia fumes and obnoxious odors.