Rolex 178240 Datejust Lady 31 Black Sunburst Jubilee (26839)

26839 Rolex 178240 Datejust Lady 31, stainless steel on a stainless steel Jubilee bracelet, automatic Rolex caliber 2235 movement, black sunburst dial with applied Roman numeral hour markers, date with magnifier at 3 o'clock, central sweep seconds hand, COSC, sapphire crystal, M series (2007), diameter: 31mm, thickness: 10.5mm, Like New with Box and Papers; which are undated.


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More about Rolex 178240 Datejust Lady 31 Black Sunburst Jubilee

This is a 904L stainless steel Rolex Oyster Perpetual Datejust Lady 31 178240. It has a stainless steel oyster bracelet with a double folding deployment clasp, and a scratch resistant sapphire crystal. It has a screw-down winding crown with the twinlock double waterproofness system, and a solid screw-down case back. The 31mm diameter solid three-body case, integral downturned lugs, link bracelet, and angled bezel are polished/brushed. The dial is black sunburst with applied roman numerals. It has steel baton hands, a center sweep seconds hand with Roman numeral markers every five minutes. There is a date aperture window at the 3 o'clock position underneath a cyclops magnification bubble in the crystal. It has a Certified Official Superlative Chronometer (COSC) rating, and it's water resistant to 100 meters/330 feet. It has a 48-hour power reserve at full wind, and the 10.5mm thick case, dial, and movement are all signed.

This Rolex Oyster Perpetual Datejust 178240 has a mechanical automatic self-winding Rolex caliber 2235 movement. It's rhodium-plated, with oeil-de-perdrix embellishment. It's constructed with 31 jewels, an incabloc shock absorber device, and a straight-line lever escapement. It includes a monometallic balance that's adjusted to temperatures and 5 positions, a self-compensating freesprung Breguet balance spring, microstella regulating screws, and a quickset hacking seconds mechanism for precision time setting. The movement oscillates at a frequency of 28,800 vph (4Hz).

This Rolex Oyster Perpetual Datejust 178240 was introduced in 2016.