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| Source : | https://en.wikipedia.org/wiki/RockWatch (en.wikipedia.org/wiki/RockWatch) | | |
| Copied Wikipedia parts under license : | Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) | | |
| Catalog number(s) : | | 76 908-7 | |
| Notes : | The RockWatch or Rock Watch was a trademarked brand of wristwatch by Tissot with a case essentially made of stone, initially alpine granite from the Grisons, Ticino, and Valais cantons of Switzerland.
It was designed by Robert Mazlo and first introduced to the U.S. market in December 1985 and in Switzerland March 1986.
Production ran from 1985 to 1992. Product support was terminated around 2006.
Tissot claims it was the world's first wristwatch with a case made of natural stone. The cavities for the movement and dial face were milled from both sides, making the dial an integral part of the case. The straps were fixed to the back plate on both ends thus preventing mechanical stress to the stone.
Later versions of the watch used different stones from various mountainous areas around the world including alabaster, aventurine (Brazil), basalt (Scandinavia), blue lace agate, blue sodalite (Brazil), lapis lazuli (Italy), magnesite, picture jasper (Kalahari desert), pink rhodonite (Australia), quartz, and thulite. Some pieces received decorative dial inserts such as sectors from prehistoric clamophyllia coral (Jura mountains) as a premium option.
Back plate lettering was originally embossed and "RockWatch" written in capitalized form; some laser-engraved pieces were sold at some point later on. The final batches were fitted with a slightly redesigned embossed plate with a modernized T-logo and "rockwatch" in lower case letters.
The original stone design was followed up by a similar watch with mother-of-pearl cases commonly nicknamed PearlWatch, while the back plates continued to carry the RockWatch name.
It was ultimately succeeded by the WoodWatch made from exotic timbers and in larger case sizes (33 mm / 38.5 mm).
Three case diameter sizes were available:
23 mm (R140 Ladies' size)
30 mm (R150 Unisex size)
33 mm (R151 Men's size) | This watch mentions "Martini" on the strap. Probably this print was added afterwards to make it a merchandise product | |
| Color : | | Blue | |
| Color : | | Grey | |
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| Weight packaging included | | | |
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| Image | | Tissot Martine Half View Front(1).jpg | |
| Image | | Tissot Martine Zoom View Front.jpg | |
| Image | | Tissot Martini Full View Back.jpg | |
| Image | | Tissot Martini Full View Front.jpg | |
| Image | | Tissot Martini Half View Back.jpg | |
| Image | | Tissot Martini Zoom View Back.jpg | |
| Video | | TISSOT Rock Watch R150 | |
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| Credits : | | Made In : Switzerland | |
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| Material : | | LeatherStraps | |
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| Year : | | 1980s | |
| Stone / Rock | Stone / RockCase | |
| materials |
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| Complications : | | Hour / Minute Hand | |
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