The Swiss luxury watch company Tissot from Le Locle, Switzerland, was established in 1853 by Charles Félicien Tissot and his son Charles-Emile.  Under Charles-Emile’s direction, they manufactured pocket watches with parts from Russia and the United States.  In 1915, the company began producing wrist watches.  Between 1920 and 1977, Tissot produced its own movements.  During the 1980s Tissot introduced the RockWatch trademark.  Each case was made from initially alpine granite from different regions of Switzerland.  Designed by Robert Mazlo in 1985, it was a world first.  Later designs used other types of stones such as lapis lazuli, quartz, magnesite. 

Our 1991 Tissot R150 RockWatch is made from a gold plated case inset with a mother of pearl dial, a composite material made by some molluscs as an inner shell layer.  The 30mm minimalist design has a crown on the right side.  A domed crystal sits above the mother of pearl dial.  Black hands contrast nicely against the glistening dial.  On the reverse, a screwed-down case back with six screws.  Inside, a six jewel quartz ETA 976 001.  The watch comes fitted on a 16mm leather strap with a signed buckle.  Comes with its Tissot presentation box and papers.