ONEOF Accuracy 4+

Take care of your watch‪.‬

Jean-Charles ROUSSET

Designed for iPad

    • 4.4 • 7 Ratings
    • Free



Chosen by Swiss brands, available for all.


ONEOF® Accuracy² -> Small, fun, powerful. For watch lovers.
ONEOF® Accuracy boutique edition -> Measures & demagnetizes simultaneously. For watch boutiques.
ONEOF® Accuracy Pro -> The new generation multi-position measurement system. For watchmakers.

For several years, we have been developing the most accurate and precise diagnostic instruments to fulfill the highest requirements of Swiss Watch Manufactures. Today, ONEOF® Accuracy gives watch aficionados the opportunity to acquire the only high-end integrated tool capable of providing a complete diagnosis of a mechanical watch on an iPhone.

Just place the crown of your watch against the ONEOF® Accuracy sensor and after a few seconds of initialization, you get all the detailed technical information about your watch in a fun and user-friendly app : beats per hour, instantaneous and average rate accuracy in seconds per day, amplitude of the balance wheel, beat error, signal analyzer as well as graph... You then have the possibility to save all the results in your watch database and share them.

What’s New

Version 3.0

Full compatibility with iOS13 & iPad Pro.
Brand new active noise cancelling algorithm.
Compatible with OMEGA co-axial escapement (note: lift angle = 37°)
New algorithms for amplitude detection, more reliable with vintage watches & tourbillons.

Ratings and Reviews

4.4 out of 5
7 Ratings

7 Ratings

martannasuisse ,

Fantastic !

Absolute must have for all mechanic watch lovers
Thank you ONEOF

Jack Stark (Official) ,

Efficace, puissant, excellent rapport qualité/peix

Très bon algorithme de "détection" des bruits de l'Echappement, fiable, interface épurée qu'on apprécie tout en étant puissante.
Attention toutefois de mettre le téléphone sur le mode "Avion" pour ne pas interrompre vos longues durées !
Seul regret: pas de graphe en portrait pour les iPhones 6+...

App Privacy

The developer, Jean-Charles ROUSSET, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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