Electronic watch powered by battery and regulated by quartz crystal. Movement ETA 976 001. Tissot was the first to produce a series of watches called Rock Watch in 1985. The case is made of Swiss granite.
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Title: Tissot Rock Watch
Date: after 1985
Date Created: after 1985
Location Created: Le Locle, Grenchen
Physical Dimensions: 3 cm
Transcript: Tissot Swiss made (on dial); Genuine Rock Watch T Swiss quartz R 150 907-7 (on case cover); ETA 976001 (on movement)