Rolex Day-Date 18K Yellow Gold Circa 1970
Rolex Oyster Perpetual Day-Date, Reference: 1803 18k Yellow Gold on a Strap, Automatic Movement, Date, Day, COSC, Centered Sweep Seconds Hand, Champagne Dial with Applied Yellow Gold Indexes, Diameter: 36mm, Thickness: 12mm, Circa 1970, Excellent Condition with European Watch Co. Box and Warranty Card.
More about Day-Date 18K Yellow Gold Circa 1970
This is a vintage c. 1970 with an 18k gold tang buckle, and an acrylic crystal. It has a screwed down solid case back and winding crown, and the 36mm diameter solid three body Oyster case, fluted bezel, and bracelet, are polished/brushed. There is a date aperture window (non quick-set) at the 3 o'clock position underneath a Cyclops magnifier bubble, and it includes an arched indicator aperture at 12 o'clock with the completely spelled day of the week in English. The dial is off-white with applied yellow gold faceted baton hour markers, luminous pip hour indices, and a raised black perimeter minute/seconds track with gold pips on the hours. It has a central sweep seconds hand, luminous gold delta hands, and it includes the Certified Official Superlative Chronometer (COSC) certificate. It's water resistant to 50 meters/167 feet, and the 12mm thick case, dial, and movement are all signed. This Rolex Oyster Perpetual Day-Date President 1803 has a mechanical automatic self-winding Rolex caliber 1556 movement that's rhodium-plated, with oeil-de-perdrix embellishment. It's constructed with 26 jewels, a shock absorber device, and a straight-line lever escapement. It includes a monometallic balance adjusted to 5 positions and temperature, and a self-compensating free-sprung Breguet balance spring. There are Microstella regulating screws, and the mechanism oscillates at a frequency of 19,800 vph (2.75 Hz). The Rolex Oyster Perpetual Day-Date President 1803 was introduced in 1958, and it was produced until 1978.
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