The Arnold & Son Constant Force Tourbillon Is a Technical Tour de Force

The Arnold & Son Constant Force Tourbillon Is a Technical Tour de Force

Striving for the utmost in timekeeping precision, Arnold & Son’s new Constant Force Tourbillon is designed to eliminate inaccuracies introduced by variances in the power that is supplied to the regulator as the mainspring winds down. To accomplish this, the watch is equipped with two barrels; one supplies power to the gear train, while the other supplements the power of the main barrel if its torque output drops below optimal levels. Rather than sacrifice precision, the watch will stop operation if power f…