Watch Scope


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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 beat and provides important information about it. Small but elegant, it will accompany you around the world. Whether you are working at your desk, taking a business trip, or buying a new watch, the Watch Scope will become your most reliable advisor.

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 accuracy rate.

Your Watch collection

The Watch Scope takes care of your entire watch collection and records all the measurements in its database. All your timepieces are easily monitored and you will know when one should be serviced.

A new way to measure watch performance

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


The Watch Scope can be used in multiple positions. It is the only watch analyzer able to measure your watch when it is worn.


Simple, Reliable, Universal: 3.5mm Jack Connector (Audio Connector)
Compatible with Jack to lightning converters, Jack to USB MINI / MICRO / A / C

Compatible devices

With most devices: iOs (iPhone/iPad), Android, Windows 10 (Microsoft)

Size and Weight

Diameter : 36mm

Height : 12 mm

Weight : 10 g

Compatible watches

All mechanical watches, automatic or not, with the following frequencies:

14400 a/h, 16200 a/h, 18000 a/h, 19800 a/h, 21600 a/h, 23400 a/h, 25200 a/h, 28800 a/h, 36000 a/h, 72000 a/h.

That is to say 99% of mechanical watches

Materials and manufacturing

Aluminum body, laser engraving, oak box

What’s in the Box

Watch Scope

Jack cable 3.5 mm

User guide


3 years