.mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important))You can help expand this article with text translated from the corresponding article in French. (March 2017) Click [show] for important translation instructions.
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Jehan-Jacques Blancpain (born 1693) was a Swiss industrialist at the beginning of the eighteenth century. Blancpain is a notable figure in the history of watchmaking, who created the Blancpain in 1735 (the oldest registered watch brand in the world), in the town of Villeret, of which he was mayor.[1]