Multi Arc Magnetron Sputtering PVD Coating Machine for Precision Wristwatch Components Compact multi-arc source specially designed for watch cases, watch bands, and tiny watch accessories. Anti-tarnish coating prevents oxidation on small precision metal parts, supporting high-gloss mirror finishes and delicate gradient colors for luxury watch decoration. Technical Specifications Component Specification Bias Power Supply 1 Set Rotation Stand 1 Set Heating System 1 Set