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Longines L7.9842 'Dupont' Slim Quartz WatchWidth without crown - 33x37mmLug width - 17mmTotal thickness - 6mmMovement - longines quartz movement Year of production - 1990'sCase material - stainless steel and gold plating Water resistant - washing hands/ showering Up for grabs is a beautiful longines slim quartz watch. The watch is in good running condition and keeping great time. The dial is marked 'longines, Dupont, Swiss, and features a date window'. The caseback is marked Base Metal, l7.9842.
The bracelet is a Duchess brand bracelet marked stainless steel and has the longines logo on it as well.
Begining about 1970, it appears that Longines changed their serial numbering system. The numbers below are assumed to be the result of the new numbering.