Rolex Oyster Perpetual 6106, a Swiss automatic watch from the mid-1950s, featuring a 34 mm stainless steel Oyster case, original Rolex-signed screw-down caseback, and domed plexiglass crystal. Original champagne-colored dial with natural patina, applied arrow-style hour markers, and dauphine hands, signed “Officially Certified Chronometer.” Powered by a Rolex Perpetual automatic movement certified as a chronometer. An excellent example of classic post-war Rolex design—elegant, well-balanced, and highly collectible.