The Accuracy Pro is a high-end manual multi-position acoustic sensor which brings to end years of lack of innovation in the field of watch measuring instruments.

The Accuracy Pro is made entirely in a high-grade anodized aluminium alloy by Petitpierre. All sensitive elements potentially in contact with the external parts of the watch are coated with a soft-touch rubber. For the Accuracy Pro, a brand new electronic board based on the premium XMOS micro-controller was developed, a flawless Hi-res USB audio processor.

The Accuracy Pro comes with a newly developed Windows App which integrates all the features you need: real-time scope view, diagram display, dispersion over time, cumulated graphs, and tabular and radar charts.

It is a stand-alone device. It requires no battery or power supply. Plug it and forget it. It is that simple.

Open the app. Plug in the device. Place your watch on the sensor. Done!

• Measure & displays accuracy, accurate to +/- 0.1 second per day
• Automatically detects the most common beats (movement “ancre Suisse”) and displays the beat error as a figure and line chart, with a measurement range up to 9.9ms
• Testing line length can be as long as you want
• Measures & displays amplitude (range 70 to 360°)
• Measures magnetism
• 6 position microphone
• 6 different display modes possible including radar chart
• Aluminium body
• Use the PC speakers or headphones to listen to the escapement sound in real time.
• Compatible with iOS
• App downloaded from your usual app store. Automatically downloads the latest software
• See PDF 
• Made in Switzerland