Cartier Ballon Bleu de Cartier 33mm Small TPD & Winder Settings | Aevitas

Owners of the Cartier Ballon Bleu de Cartier 33mm Small often ask us which winder programme this movement actually needs. The answer is 725 turns per day on a clockwise cycle — the figures are set out below.

Recommended Winder Settings

Setting	Value
Turns per day (TPD)	725
Winding direction	clockwise
Movement

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Why These Settings Matter

The 725 TPD figure reflects how much energy this movement uses in a day and how efficiently its rotor converts motion into power. Match it and the Ballon Bleu de Cartier 33mm Small holds a healthy reserve indefinitely. Set the winder far lower and the reserve slowly drains until the watch stops.

Overshooting is not a hazard. A slipping bridle inside the barrel releases tension once the mainspring reaches full wind — a safeguard fitted to modern automatic movements — so an excessive TPD cannot damage the watch. At worst, the movement is exercised more than it needs to be.

Every Aevitas winder can be programmed from 650 to 1,850 TPD in either direction, so matching the 725 TPD this watch needs takes seconds.

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