Serious watch collectors have a serious amount of money invested in their timepieces. The One-of Accuracy Pro can ensure they stay in top condition. It has uses a high-end acoustic sensor to detect the vibrations in a timepiece's movement, amplifying and digitizing them for analysis. Its anodized aluminum alloy body has soft-touch coatings where it comes in contact with the watch, as well as an arm that allows for measurements in six common positions. The results are displayed in a companion iOS or Windows app, and can also be saved and sent off for remote analysis by trained technicians. The results are fewer unnecessary service fees, less surprise problems, and more time enjoying the timepieces themselves. iPad not included, but the app is free to download to your device.

Rate Accuracy
Range: ±1000 s/d / Resolution: 0.1 s/d / Accuracy: ±0.1 s/d

Amplitude
Range: 70 to 360° / Resolution: 1° / Accuracy: ±1° / Lift Angle: 10 to 90°

Beat Error
Resolution: 0.1 ms / Accuracy: ±0.1 ms

Frequency
Automatic detection of common beating frequencies: 7'200 to 72'000 b/h
Manual entry of any other custom values
Swiss anchor & coaxial escapements

Width: 4.7" / Height: 5.5" / Depth: 6.7" / Weight: 2.1 lbs.