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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsToolwatch.io is a free service for tracking how quickly or slowly a mechanical watch runs over a real-world test. It compares the watch’s displayed time at the beginning and end of an interval, then expresses the difference as a rate such as seconds gained or lost per day. That makes it useful for owners and collectors checking a watch’s everyday performance. It is not a timegrapher: it does not diagnose beat error, amplitude, or other movement behavior.
What Toolwatch.io is—and whether it is still available
Toolwatch is a mechanical-watch accuracy tracker available through its website and a free iPhone and iPad app listed on the U.S. Apple App Store. The website offers a “Measure your watch” function, and Apple’s listing identifies the developer as Mathieu Nayrolles. The public listing confirms availability, but does not establish how frequently the service or app is maintained.
Apple’s listing shows legacy-looking compatibility information, including iOS 9.0 or later. That minimum version should not be taken as proof that the app works on every current device; check compatibility on your own device before relying on it. The available public information also does not establish current Android availability.
The service is aimed at mechanical-watch owners and collectors who want to track a watch’s rate, including how it performs while worn. Toolwatch says it is free and describes its reference-time system on its about page.
#1 Best Overall
- Model of this Watch timing machine:NO.1000；110V-220V US plug;
- Easy to use for mechanical watch collection. This watch tester automatically calculates rate, amplitude, and beat error using readings from the microphone stand.
- LCD screen displayed.According to different watches, the instrument will automatically adjust optimal signal level during testing. - The LCD screen shows the readings in real time with 2 dotted lines moving across the screen to provide a visual representation of the “tic tock” from your watch
- 6 kinds of testing position can be adjusted. Amplitude level is between 275 and 315; Rate Deviation Range: ±999 s/d with precision ± 1 s/d'
- The sampling period can selected by 2 , 4 , 6 , 8 , 10, 20, 30 , 60 seconds, and the average of corresponding period will be regard as the precise value of the watch.
How Toolwatch measures a watch’s rate
Toolwatch says it synchronizes with a U.S. Naval Observatory atomic-clock cluster and accounts for network time between the user and its servers. The measurement is an elapsed-time comparison: synchronize the watch, note its displayed time, let it run, then compare it with the reference again. Toolwatch calculates the difference over the interval and converts it to a daily rate.
- Synchronize the watch to the reference time and record its displayed time at the start.
- Let the watch run for a chosen interval.
- Compare the watch’s displayed time with the reference at the end.
- Express the difference as seconds gained or lost per day.
A positive rate means the watch gained time during the test; a negative rate means it lost time. The result describes that test period, not a fixed property of the watch. It reflects the positions, activity, winding state, temperature, and other conditions the watch experienced.
This is different from a timegrapher, which listens to the escapement and can report values such as beat rate, beat error, and amplitude. Toolwatch’s published description does not say that it uses a phone microphone or analyzes escapement sounds.
Rank #2
- Ultra-Precision: The No.1000 timegrapher delivers industry-leading ±0.1s/d accuracy (50-sample avg.) for advanced movements and ±999s/d range for antique/faulty watches. Instantly diagnose timing issues with this professional watch timegrapher. NOTE: Our mechanical watch timegrapher No. 1000 is only suitable for mechanical movement watches and does not support quartz movement watches!
- Smart Frequency Analysis & Multi-Parameter Display: Auto-detects standard beats (manual mode for special frequencies) with 2-60s sampling cycles. Test 6 positions (pocket watches to tourbillons). Color LCD shows real-time rate, amplitude, beat error, lift angle, and timing curves – essential timegrapher intelligence.
- Comprehensive Performance Metrics: The timegrapher features either a microphone or sensor that detects the ticking sounds or vibrations produced by the escapement. Measures critical parameters: amplitude (100°-360°), beat error (0.0-9.9ms), and adjustable lift angle (30°-70°). Live graphs enable swift diagnostics for watch timegrapher professionals.
- Professional Calibration Essential: The definitive tool for watchmakers, manufacturers, and technicians. Perfectly complements watch demagnetizer professional setups for complete movement servicing. Indispensable bench equipment for precision calibration.
- 12-Month Satisfaction Guarantee: All SWANSOFT 1000 timegrapher units include 12-month support. Contact us 24/7 – your satisfaction drives our professional commitment.
How to use Toolwatch for a more useful result
- Open the website or app. The website provides a measurement function; Apple lists the iOS app as free. Create or select a watch entry if the interface prompts you to do so. The App Store description mentions watch tracking and suggested calibers when adding a watch, though the current status of every historical feature is not established.
- Keep the starting conditions consistent. Begin with the watch fully wound, or at least in a repeatable state of wind. If you do not know its winding state, note that rather than treating it as controlled.
- Synchronize carefully. Use the watch’s seconds hand as the visual target. A clearly identifiable position, such as the hand reaching 12, can help you start consistently. Avoid starting the measurement early or late.
- Allow enough time to pass. A longer test reduces the relative effect of a one-second start or finish error. Historical App Store reviews mention tests of about 12 hours, but that is user-reported and should not be treated as a current official requirement.
- Record how the watch was used. Note whether it was worn, left dial-up, or kept in another position, along with winding state and temperature if known. Different conditions can produce different rates.
- Repeat before drawing a conclusion. Run another test under similar conditions. A single surprising reading is not enough to establish a persistent problem.
Toolwatch’s App Store description mentions an atomic-clock setting aid and dashboard functions. Historical reviews also report that some users had difficulty correcting a start time entered incorrectly. Because those reports may concern older versions, treat them as a reason to verify an entry before starting—not proof of a current defect.
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How accurate are Toolwatch readings?
Toolwatch says its reference-time system accounts for network time, but that is a first-party description, not independent laboratory validation of the complete measurement process. The atomic-clock-based reference can provide a sound time reference; it cannot eliminate user timing error, network or device interaction, or the watch’s own changing rate.
App Store reviews include both positive reports of a simple, useful tool and complaints about inconsistent or implausible readings. These are anecdotes, not controlled tests. If a result seems wrong, check the synchronization, extend the test, and repeat it before assuming either that the app or the watch is at fault.
Rank #3
- Watch timegrapher is an essential tool and it is capable of recording various elements of watch accuracy including the rate at which the watch gains or loses time, the amplitude of its balance wheel oscillations and its beat error. If you feel that the accuracy of your timepiece is off, by connecting the watch to the timegrapher, you can instantly gather crucial data about its timekeeping behavior.
- The timegrapher features either a microphone or sensor that detects the ticking sounds or vibrations produced by the escapement. Key elements such as the beat rate , beat error and amplitude are precisely measured and illustrated on the timegrapher’s display. By analyzing these values, watchmakers can determine whether the watch is gaining or losing time and diagnose any irregularities.
- It is essential to consult the user manual and information before use. Your timegrapher may also have more advanced functions that require understanding. However, timegraphers in general are pretty consistent in regards to how to use them and are also relatively simple to use.
- TICFROG Timegrapher 1000 is equipped with all the essential functions needed to analyze a watch’s accuracy and is more than enough for beginners. It measures the critical parameters such as beat rate, beat error and amplitude, displaying results both graphically and numerically. It is a great option for novice watchmaker’s just getting to grips with timegraphers and watch accuracy.
- TICFROG CUSTOMER SERVICE - All TICFROG products carry a full satisfaction guarantee within the 18 months of purchase. If for any reason you are unsatisfied , you can contact us directly, we'll respond within 24hrs. Customer satisfaction is our top priority and we aim to make every TICFROG customer a customer for life.
Mechanical watches do not necessarily run at one constant rate. Their rate can change with position, mainspring tension, temperature, shock or vibration, magnetism, and the condition of the movement. A watch worn throughout one test may therefore produce a different result from the same watch resting in one position during another test. Toolwatch emphasizes measuring a watch in real wearing conditions; that can be relevant to everyday ownership, but it does not reveal how the movement behaves in every position.
- Short intervals: A small synchronization error can dominate the calculated daily rate.
- Position changes: A watch can gain in one position and lose in another.
- Winding state: Behavior may differ near the end of the power reserve compared with a freshly wound watch.
- Recent events: Shock, magnetism, or a change in service condition can affect performance.
Toolwatch versus a timegrapher
These tools answer different questions: Toolwatch estimates a watch’s elapsed-time performance over a longer interval; a timegrapher provides short-term escapement measurements that can help with diagnosis and regulation.
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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →| What you need to know | Toolwatch | Timegrapher |
|---|---|---|
| Main purpose | Track real-world gain or loss over a chosen interval | Measure escapement behavior and support diagnosis or regulation |
| Typical output | Rate, generally in seconds gained or lost per day | Rate, beat error, beat rate, amplitude and, depending on the instrument, waveform or positional results |
| Measurement approach | Compares watch time at the beginning and end against a reference | Uses a microphone or contact sensor to detect escapement beats |
| Best suited to | Owners and collectors tracking a watch during use | Watchmakers and advanced hobbyists investigating movement behavior |
| Test context | Extended home test or actual wear | Shorter measurements, often in controlled positions and winding conditions |
| Cost information | Toolwatch says the service is free | Varies by hardware or software; the tools below describe their own offerings |
For a phone-based alternative, Timegrapher X offers instant and long-test modules. Its long-test documentation describes Pro features including PDF reports, CSV export, and tests up to 120 hours. Those are timegrapher-style functions, not a like-for-like replacement for Toolwatch’s start/end elapsed-time tracking.
Rank #4
- Timegrapher NO.1000
- coaxial test
- for almost all mechanical watch
- Multi-purpose timegrapher, popular with the professional watchmakers as well as the watch collection
Browser-based options include Timegrapher.ai and Timegrapher.io, which present themselves as microphone-based timegraphers. Their readings depend on capturing the escapement sound and should not be mistaken for a calibrated professional instrument. Toolwatch is the more relevant choice if the question is how the watch performed over an extended real-world interval; a timegrapher is the better category of tool for investigating movement behavior.
Can Toolwatch tell you whether a watch needs service?
No—not on its own. A repeated rate outside the manufacturer’s specification may be a reason to investigate, but acceptable performance depends on the movement and the watch’s stated standard. A certified chronometer’s criteria, for example, are not a universal pass/fail rule for every mechanical watch, particularly vintage models.
Consider the rate alongside the watch’s warranty or accuracy guarantee, service history, and other symptoms. Stopping, unusually short power reserve, a sudden large change, suspected magnetism, shock, or water exposure calls for more than an app reading. A watchmaker can test the movement and advise whether regulation or service is appropriate. For a warranty claim, sale, or other high-stakes decision, an app estimate is not a professional diagnostic report.
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Privacy, accounts, and compatibility considerations
Apple’s App Store listing currently says the developer has not provided privacy-practice details to Apple. That does not establish what information the service collects or how it handles it; readers should make their own judgment before entering personal information. Historical App Store reviews mention account creation and difficulty editing some recorded data, but those reports may reflect older versions and do not confirm the current workflow.
The U.S. App Store listing is free and identifies iPhone and iPad compatibility, but its old-looking minimum-version metadata does not guarantee compatibility with every present-day device. Public information reviewed here does not establish the app’s current release cadence, Android support, account recovery process, or export options.
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