Toolwatch - Watch accuracy app

722 reviews
Content rating
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About this app

Measure and track the accuracy of your mechanical watches. Toolwatch is a free watch accuracy app trusted by the watchmaking industry's leaders and over 65,000 monthly users. Is your watch accurate? Should it be serviced? Is your watch magnetized? How does it compare versus other watches? Find out now by measuring the accuracy of your watch!

Toolwatch also brings to you the best tips, tailored on your watch for taking care of your watch collection.

"I had the feeling my watch was running late, now I am sure thanks to Toolwatch and I could get my watch serviced for free as it was still under warranty!" - Benjamin Baudisson, Vacheron Constantin

"As a watch collector, knowing when to service my watch is crucial. Toolwatch helps me taking care of my mechanical watches." - Alex Ghotbi, Watch Specialist and Associate Director at Phillips Auctions.

As seen on ABlogToWatch, FratelloWatches, Theo & Harris, WristReview, Europa Star and more.

Find out now if your watch is accurate, it is FREE using Toolwatch mobile app.
Updated on
May 28, 2017

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
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722 reviews
Jeremy Lee
October 21, 2020
Lots of nonsense emails sent to you when you are forced to sign up for an account. I don't need all this unnecessary stuff. There are better apps out there that's does a simple function. I will use an excel spread sheet and graph if I have to. Simple things made complicated in this app. Uninstalling it.
10 people found this review helpful
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A Google user
November 7, 2019
Makes no sense, as it simply forces you to compare your own watch to network time servers over long periods of time. A real watch analysis tool (like Tickoprint) 'reads' the beat rate via microphone, measures beat errors down to microseconds. Only THEN an accurate and fast measurement of timing errors can be seen and quickly adjusted, by regulating the balancer. This app is usesless: anyone can compare any watch against radio time signals (TV, GPS, atomic clock receivers) at any time and anywhere - without an 'app'!
7 people found this review helpful
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A Google user
July 26, 2019
It appears the time sync with the aromic clock is not accurate or has a lag. this causes huge swings in calculated "accuracy" of watches. My quartz was running +1.1 seconds which was probably close to correct, the next day it says its 102 seconds fast. I rechecked it with the atomic clock on the internet and it was spot on. If it was consistent this would be a great app, unfortunately, its not worth it if it cannot do its job well.
8 people found this review helpful
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What's new

In this version, we focused on bug fixes. In details:

- Watches with more than 1 and less than 2 measures were not properly displayed;
- The autocompletion on calibres wasn't available;
- Errors messages weren't displayed properly;
- Wrong password on login was crashing the app.