Classically executed, this Perpetual Calendar is equipped with the automatic 240 Q.caliber, which beats at 21,600 vibrations per hour, is powered by an off-center, unidirectional winding 22-karat gold micro-rotor, and is visible through a sapphire crystal caseback. Due to the three calendar adjusters positioned via the lugs, the bracelet features a special mechanism on the first link-both sides-to house the extensions of the small adjustment pushers. | |  |
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