Watch Scope

The compact solution for analyzing your watches


Compatible iPhone 7

Watch Scope

The Lepsi Watch Scope can measure the performance of your mechanical watch (rate variation, amplitude, and beat error) in just seconds and with exceptional accuracy. The Watch Scope is a concentration of the highest technology and the smallest chronocomparator ever made.

A perfect fit in your hand, the Watch Scope analyzes your watch’s beat and tells you important information about it. Small but elegant, it will accompany you around the world. While working at your desk, during a business trip, when buying a new watch: the Watch Scope will become your most reliable advisor.

A professional watch analyzer in the palm of your hand

Smart-user instrument

Connect the Watch Scope to your touchpad device (smartphone or tablet), click on Start, and the Watch Scope will take care of everything.

Highest measurement accuracy

After your touchpad device has been calibrated against the atomic clock, the Watch Scope is accurate to 0.1 second per day (s/d) when measuring your timepiece’s accuracy rate.

A new way to measure watch performance

Measure your watches whenever you want, wherever you are: for example, at home, in your office, or when buying a new watch.


The Watch Scope takes care of a full watch collection and records all measurements in its database. In that way, you can follow all timepieces over the years and detect when each should be serviced.


he Watch Scope can be used in multiple positions and is the only watch analyzer able to measure your watch while being worn.

Technical data


iOS: iOS 8 and above (with iPhone 5/5S/5C/6/6 Plus/7/7Plus, iPad 3/4/5, and iPod touch)

Android: Android 4.4 and above (with a high end device like Samsung Galaxy S5/S6, Sony Xperia Z3, HTC One m7, HUAWEI Honor 7, Motorola Moto X ….. or equivalent)

Connectivity 3.5 mm jack, 4 poles (no separate AC supply)

Measuring range

Rate variation: -1000s/d to +1000s/d (+/- 0.1 sec/day)

Amplitude : 80° to 360° (+/-  1°)

Beat error : 0 to 10 milliseconds [ms] (+/-  0.1 ms)

Lift angle : Adjustable from 10° to 90°

Buy now

CHF 369

CHF 369.00
Available in USD and Euros