Watch serial number database3/4/2023 The General Watch Company, Helvetia's parent company, had other brand names in its stable and you may be able to also look up Orta, Ortona, Paradox, Post and Sackville wrist and pocket watches using this tool if their serial numbers fall within the range. Serial numbers are usually inscribed on the inside or outside of the case back often with a case number. Not all Helvetia watches have a serial number inscribed on them and early trench watches, chronographs and triple date watches often have a different format serial number that, unfortunately, I cannot use to date these watches. Using information from hallmarks, inscriptions, movement types, patent applications and the style of watch I have developed a database to allow the reasonably accurate dating of Helvetia watches from these numbers. They continue to about 6030000 in 1972 or so when they changed their serial numbering system. It looks as if the numbers are a continuation of, and are combined with, the General Watch Company's pocket watch serial numbers. ![]() ![]() Helvetia serial number marking on their wristwatches appear to start at about 2880000 in about 1914.
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