Short answer

A fake Rolex 279160 is a counterfeit copy of the Lady-Datejust 28 in Oystersteel. Genuine examples have a 28 mm case, a domed steel bezel, sapphire glass with a Cyclops lens, and Rolex calibre 2236. Copies use 316L steel, a generic automatic or quartz movement, and glass that is often mineral. Price shows the split. Used genuine watches trade for about $5,500 to $9,000. Copies sell for $120 to $600. Rolex does not publish production numbers, so no source can say how many fakes exist.

Genuine specs for reference 279160

  • Case: 28 mm, Oystersteel, polished.
  • Bezel: domed, smooth, steel.
  • Crystal: sapphire, Cyclops lens at 3 o'clock, 2.5x date magnification.
  • Movement: calibre 2236, automatic, Syloxi silicon hairspring, 31 jewels, 55 hour power reserve, 28,800 vph.
  • Water resistance: 100 m / 330 ft, Twinlock crown.
  • Bracelet: Jubilee or Oyster, folding clasp.
  • Certification: Superlative Chronometer, -2/+2 seconds per day.

Confirm the exact configuration with Rolex or an authorized dealer. Bezel and bracelet combinations changed across the production run.

Where copies fail

  • Case size. Many fakes measure 27.5 mm to 29 mm.
  • Cyclops. Genuine magnification is 2.5x. Copies run 1.5x to 2x and sit off center.
  • Date font. Numerals on fakes are thicker and the window edge is rough.
  • Rehaut. The ROLEX ROLEX engraving on fakes is shallow and misaligned with the minute track.
  • Bracelet. End links on fakes leave gaps at the lugs. Screw heads on the Jubilee are flat instead of domed.
  • Clasp. The crown stamp is stamped on fakes and raised on genuine clasps.
  • Laser etched crown at 6 o'clock on the crystal. Many fakes omit it or etch it too large.
  • Caseback. Genuine casebacks are plain. Fakes sometimes carry engraving.

Movement checks without opening the case

Set the watch to 12:00 and watch the date change. A genuine 2236 flips the date within a few minutes of midnight. Cheap movements drift past 1:00 a.m. Pull the crown to the first position and turn it. The hands should move with no grind and no slip. Listen for rotor noise. A 2236 is quiet when shaken. A cheap automatic rattles.

An open caseback photo does not help here. Replica 279160 watches have solid casebacks, so the seller cannot show the movement. Ask for a photo of the reference engraving between the lugs at 12 o'clock. Genuine engraving is crisp and even. Fake engraving is shallow, uneven, and in the wrong font.

Prices and legal status

Genuine 279160 asking prices on the secondary market sit between roughly $5,500 and $9,000, based on year, condition, and whether box and papers are present. Replica tiers break down like this:

  • Entry copies: $80 to $150. Quartz or low grade automatic.
  • Mid tier: $180 to $350. Automatic, better case finishing.
  • Top tier super clone: $400 to $700. Clone or modified movement, sapphire glass.

In the United States, trafficking in counterfeit goods is a federal crime under 18 U.S.C. 2320. US Customs and Border Protection seizes counterfeit watches at ports and mail facilities. A purchase can end in seizure with no refund. Rolex holds registered trademarks on the name, the crown logo, and the dial design.

What to ask before you buy

  1. Serial and reference photos from between the lugs.
  2. Papers, box, and service history.
  3. Case diameter measured with calipers.
  4. Cyclops magnification photo next to a ruler.
  5. Return policy in writing.

If a seller cannot supply the first four items, treat the watch as a copy. A 28 mm case is small, so photos distort scale. Calipers do not.