
Automatic, skeletonized caliber derived from the GP1800 platform. Features small seconds at the 10 o'clock position. The componentry is treated with an anthracite gray ruthenium galvanic finish and styled as a metallic mesh, while the rhodium-plated geartrain allows visual tracking of the energy flow. Diameter: 29.90 mm (13 ¼’’’); Height: 4.16 mm; Frequency: 28,800 vph (4 Hz); 173 components; 25 jewels; minimum 54-hour power reserve; functions include hours, minutes, and small seconds.