Piaget's latest top-level real flywheel

Piaget's latest top-level real flywheel Case: 40mm diameter, polished by CNC top-level craftsmanship, each case is processed with electro-gold. Mirror surface: sapphire crystal mirror surface, with blue coating. Transparent effect, looks more transparent.  Movement: Electric gold tourbillon manual winding movement, kinetic energy 120 hours. Waterproof: 50 kg vacuum waterproof test.  Art, craftsmanship, high-end atmosphere, the best choice Piaget tourbillon.