Rolex Datejust 31 278278

Model #: 278278 Champagne Index President Rolex Datejust 31mm Yellow Gold Ladies Watch

Rolex is a registered trademark of Rolex USA. Prestige Time LLC is not an authorized dealer for Rolex and is in NO WAY affiliated with Rolex SA or Rolex USA. All Rolex watches sold by Prestige Time LLC are in UNWORN condition. Polished 18kt yellow gold case. Polished 18kt yellow gold Twinlock crown. Polished 18kt yellow gold fluted bezel. Champagne dial. Applied polished 18kt yellow gold index hour markers with luminous fill. Polished 18kt yellow gold hands, the hour & minute hands with luminous fill. Fine printed minutes/seconds track. Date window displayed at the 3 o'clock position with a cyclops magnifying lens. Rolex in-house caliber 2236, beats at 28,800 vph, contains 31 jewels & has an approximate power reserve of 55 hours. The movement features a Syloxi hairspring in silicon & high-performance Paraflex shock absorbers. The watch is Superlative Chronometer certified: the movement is COSC certified prior to casing, then it is tested a second time by Rolex after being cased to ensure accuracy. Alternate model # m278278-0040 Case Shape : Round Case Dimensions : 31mm Case Material : 18kt Yellow Gold Dial Color : Champagne Crystal : Scratch Resistant Sapphire Bezel : Fixed Screw-in Crown : Yes Water Resistance No ratingDoes not allow contact with water 30m/99ft - 50m/165ftAllows for contact with water such as washing hands and rain 50m/165ft - 100m/330ftAllows for light poolside swimming 100m/330ft - 200m/660ftAllows for swimming, snorkeling and showering (do not expose to hot water) 200m/660ft - 500m/1650ftAllows for impact water sports such as board diving and scuba diving 500m/1650ft +Appropriate for serious deep water diving. Learn more about Water Resistance. Close : 100m/330ft No rating : Does not allow contact with water 30m/99ft - 50m/165ft : Allows for contact with water such as washing hands and rain 50m/165ft - 100m/330ft : Allows for light poolside swimming 100m/330ft - 200m/660ft : Allows for swimming, snorkeling and showering (do not expose to hot water) 200m/660ft - 500m/1650ft : Allows for impact water sports such as board diving and scuba diving 500m/1650ft : Appropriate for serious deep water diving Case Back : Solid Band Material : 18kt Yellow Gold Color/Finish : Brushed & Polished Band Name : Rolex President Clasp : Rolex Concealed Folding Crownclasp Movement : Automatic - Chronometer An automatic/self-winding movement is powered by a thin spiral torsion spring, called the mainspring, which is housed in an enclosed barrel inside the movement. The energy produced from the wound spring drives the movement functions. An automatic watch has a weighted rotor mounted on a pivot to the back of the movement, and the rotor is connect to the mainspring through a series of gears. The natural motion of the wearers wrist will cause the rotor to spin, which in turn will automatically wind the mainspring. Please note: An automatic winding watch which has completely wound-down or is at the end of its power reserve requires manual winding. Manually winding an automatic watch ensures that the watch is at full power-reserve when first worn, and as long as the watch is in motion thereafter it will remain fully wound, ensuring that when the watch is removed it will run the specificed power-reserve duration. Close COSC Certified : Yes