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Watch Winder TPD Calculator
Last updated: April 2026 · 3 min read
Pick your watch and get the recommended turns per day (TPD) and rotation direction for your watch winder — based on manufacturer specifications and common movement databases.
Tool
Movement Lookup
Ranges reflect manufacturer and owner-community data. Start at the lower end of the range; increase only if the watch repeatedly runs down on the winder.
How winders actually work
A winder is a motorised cradle that rotates the watch on a schedule. Every time the rotor moves relative to the case, it winds the mainspring. A typical cycle is a few minutes of rotation followed by a rest period, repeated across 24 hours.
Key settings:
- TPD (turns per day): total rotations across 24 hours. Most automatics need 650–900.
- Direction: clockwise only, counterclockwise only, or bidirectional. Depends on which way the rotor winds efficiently.
- Rest period: winders rest between turn cycles to prevent the slipping clutch from cycling endlessly.