CHRONOLOG
Mechanical watch accuracy tracker
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NO DATA YET
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s / day
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Current dev.
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Position Δ
Log at least two readings and I'll rate this watch's condition.
Watch
New Reading
Deviation vs reference time (seconds — use − if watch is behind)
−
+
+ ahead · − behind (vs time.is / phone clock)
Reading time
⏱ Now (auto)
📅 Enter date & time…
Resting position since the last reading
💾 SAVE READING
Deviation Over Time
Positional Variance (from resting positions)
Log readings after resting the watch in different positions overnight to build this table.
Log
No readings yet.
⬇ Export CSV
Clear this watch's log
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Watch name
Model number
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Delete this watch & its log