20% to 10%. In the normal sales season, Hendry will offer a discount of 20%- 10% according to different series of Longines watches. Hendry is an authorized distributor of Swiss watch and jewelry brands, and Longines is one of the top watch brands in Switzerland. Longines was founded in Soimia, Switzerland in 1832. It is marked by flying wing hourglass and has a history and technology of over 180 years.