Prestige deluxe watch winder Bi-colour - These sturdy watch winders are of a very heavy metal constructions . The thick, magnifying glass window is mounted on a strong hinge to allow access to the superior velvet cushion on which the watch is secured. Bi-Colour finish. Royal-blue velvet interior. Size: h: 190 x w: 165 x d: 127 mm. Case-Material : chrome-plated brass with partial gold, magnifying glass. Operation : intellligent fuzzy logic - Turn per day : 1690-3960. Runs on either AC power adaptor (included) or batteries.