WatchWinder.io: The Official TPD Database
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Purpose-built tools for the discerning collector who demands precision.
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AI PrecisionAI-Powered Precision & TPD Database
Stop guessing. Get perfect TPD and rotation settings for every caliber. Access data for 500+ movements.
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NTP SyncAtomic Time Sync
Sync your watch with atomic time (NTP) to verify accuracy. Millisecond precision for your chronometer.
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Get low power reserve alerts and maintenance reminders. Build a digital service history to boost resale value.
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Access our comprehensive database of TPD and rotation settings for 500+ calibers.