1988 Vintage Swatch Watch Heartstone GX100. Diameter case 33 mm Water resistant 30 meter / 100 Feet. New, never worn a new battery will be installed before shipping. Heartstone GX100 was released by Swatch as part of their Fall/Winter collection in 1988. Plastic box and warranty/ instructions are supplied. KENJO was a Swatch Authorized Dealer since 1989 and we have an extensive collection of Vintage Swatch Watches from the late 1980's and early 1990's that we put away at the time of the Swatch Craze. We closed our brick and mortar store in 2017 after more than 40 years and moved to an office 2 blocks away to continue to service our clients. We have decided to share this Swatch and the others in our collection, at the best prices in order to reduce our inventory as a semi-retirement project.