SEIKO Backing 1 Brand Mechanical Watch Backing KS Chronos Reference Number 388540 388541 Bar, piece, New, Part, Bar, Champion

This is a SEIKO product. Product details: Backing 1 Brand Mechanical Watch Backing KS Chronos Reference Number 388540 388541 Bar, piece, New, Part, Bar, Champion. Please refer to the product photos for details about the item's condition and any included accessories.