The A01 is an automatic caliber manufactured by ETA SA, featuring a micro-rotor winding system and operating at 28,800 vph with a 48-hour power reserve. It contains 32 jewels with Incabloc shock protection and displays hours, minutes, and seconds in counter-clockwise direction via a retrograde complication. The movement bridges are skeletonized, and the caliber is exclusive to ALTO, found in the ART 01 limited edition.
Movement Type
Automatic
Jewel Count
32 jewels
Power Reserve
48h
Frequency
28,800 vph (8 Hz)
Display Type
Analog
Rotor Type
Micro Rotor
Shock Protection
Incabloc
