Movement diameters: 30.25 mm × 28.45 mm Thickness: 4.45 mm Number of stones: 32 Barrel True: Made of AP 20 steel Balance: Glucydur, ® 2-arm, 4 adjustment screws, moment of inertia 4.8 mg•cm2, lift angle 53° Frequency: 28,800 vph (4 Hz) Balance spring: Elinbar by Nivarox ® Seismic device: Incabloc 908.22.211.100 (transparent) Stone Receiving Wheel of the Gangi Wheel: Rubifix (Transparent) Two-stage winding: manual winding and time setting