Rolex 118206 President Platinum Glacier Roman Dial (31325)

31325 Rolex 118206 Oyster Perpetual Day-Date, Platinum Case with Smooth Bezel on a Platinum Presidential Bracelet, Automatic Movement, COSC, Screw Down Crown, Glacier Dial, Silver Roman Numerals, Date at 3, Day at 12, Sapphire Crystal, Water Resistant, Diameter: 36mm, like new with original box and papers dated December 2006.


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More about Rolex 118206 President Platinum Glacier Roman Dial

This is a 950 platinum Rolex Oyster Perpetual Day-Date, 118206. It has an integral platinum Presidential bracelet, and a scratch resistant sapphire crystal. The 36mm diameter case, domed bezel, and screwed down case back are polished/brushed. It has a screwed down Twinlock waterproof crown. The dial is "Glacier" ice blue with applied white gold Roman numeral hour index markers, white gold baton hands, a central sweep seconds hand, and an outer minute/seconds track. It has stop seconds for precise time setting, the instantaneous date aperture is at 3 o'clock, magnified 2.5 times by a Cyclops lens, and there is a day-of-the-week sector at the 12 o'clock position. It's a Certified Official Swiss Chronometer (COSC), and it's water resistant to 100 meters/330 feet. The 12mm thick case, dial, and movement are all signed.

The automatic self-winding Rolex caliber 3155 movement is rhodium plated, with bidirectional self-winding via a perpetual rotor. It's constructed with a monobloc middle case, 31 jewels, a shock absorber mechanism, and a straight-line lever escapement. It includes a free-sprung monometallic balance adjusted to heat, cold, and five positions, a self-compensating flat balance spring, and rapid adjustment of the date and of the day of the week. The oscillator has a patented paramagnetic blue Parachrom hairspring.

This has been the most prestigious Rolex model since 1956, and it was the first calendar wristwatch to show the fully written day as well as the numerical date.