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Witschi is a private Swiss company producing high-precision state-of-the-art measurement devices for the watch industry. We both share a passion to measure and test. And repeat.


We have a selection of Witschi testing machines, testing for tightness, leaks, magnetism and much more. Contact us and we'll be able to help provide suitable options for your next project.

We can supply to all watchmakers around Australia and New Zealand. Our prices are very competitive.

For pricing enquiries and technical information, please contact us via email.

Witschi Chronoproof


The ChronoProof is a world's first tightness testing device with a integrated compressor.

This compact machine also comes with an integrated printer.

No technical know-how or staff training is necessary in order to be able to operate the ChronoProof. All you have to do is place the watch in the holding device of the sensor and close the test chamber.


The ChronoProof takes care of everything else, including parameterisation of the test program.


The ChronoProof is so quick and easy to operate that you can, for example, carry out a seal test directly on your sales desk without further ado.

Witschi Teslascope II


Teslascope can demagnetise and detects Magnetise in all mechanical watches – in a single step. The Teslascope includes a convenient, freestanding support, allowing watches with or without wristlet, movements and steel watch parts of small dimensions to be easily tested. The evaluation of the measurements takes place by red and green LED’s. 

Witschi ProofMaster CP


The ProofMaster tests the water resistance of watches conveniently with a fully automatic closing and test sequence. With its high level of operating convenience, the ProofMaster is the ideal tightness testing device for the following areas: watch service centres, watch retailers, watchmaking and watchmaking laboratories.

The new generation ProofMaster – more compact, faster, more accurate. The latest technology and smart algorithms are part of its DNA. Based on many years of experience, a device has been designed that is characterised by the easiest possible operation and parameterisation. It impresses with rapid and reliable tightness testing, small space requirements, optimal protection of watches against scratching and its ergonomic design. The ProofMaster can be used as a stand-alone device or in conjunction with the PC software WiCoTRACE 3. This provides additional possibilities for the measurement analysis and the professional administration of parameters and results, either locally or centrally. Connect a ChronoMaster to your ProofMaster and have your rate, beat error and amplitude displayed directly on the screen.

Witschi Watch Expert


The most advanced WATCH EXPERT ever was developed to meet the requirements and demands of watchmaking experts.

  • The most important results of all 6 main test positions can be seen at just one glance

  • Work comfortably on a reflection-free display, on the basis of the six adjustable angles of inclination

  • Automatic recognition of 11 test positions

  • Quick and easy to switch between test positions

  • AR-coated glass surface of the display

  • Can be operated even while wearing finger cots or gloves

  • Precise analysis of acoustic signals, the loudspeaker is directed forwards

  • Space-saving and ergonic working

  • Comfortable control of the WATCH EXPERT via microphone

The interactive microphone is characterized by the following:

  • Safe and secure mount, even for heavy, large watches

  • Test large watches with wide wrist straps

  • Fatigue-free, ergonomic control, both right- and lefthanders can individually set their chosen position

  • 8 locking positions  


Measurement capabilities:

  • Measuring rate variation

  • amplitude

  • beat errors

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