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ChronoProof PRO - up to 3 bar

ChronoProof PRO - up to 3 bar

Easy to operate, high-precision Witschi measurement technology, elegant design and handy dimensions. The ChronoProof PRO is the ideal seal testing device for the salesroom and all watch service centres. Just insert the watch, close the chamber and the test cycle starts automatically. New: Individual vacuum and pressure test cycles up to 3 bar can be selected by the user on PC.



Witschi Electronic not only produces testing equipment for watches, but also electricity. It is of great importance to us to use natural resources responsibly and manufacture our products in an environmentally-aware manner: our company consistently sets itself this target on a day-to-day basis in a very wide range of areas in production, R&D and administration.

Welcome to Witschi Electronic

Witschi Electronic Ltd. has been developing and manufacturing high-quality test and measurement instruments for more than 65 years. At the beginning, the goal of the Company has been to provide the watch industry with the best test and measurement technology. Witschi Electronic has already reached this goal in the past and has extended it successfully to a larger group of customers. With headquarters in Büren an der Aare, Witschi Electronic owns subsidiaries in Hong Kong and in Romania and manages agencies in more than 30 countries. Witschi Electronic employs 80 persons.

Witschi Electronic Ltd.
Bahnhofstrasse 26
3294 Büren an der Aare


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