The 279160 is the Rolex reference for the Lady-Datejust 28. The case measures 28 mm across. The material is Oystersteel, the bezel is smooth and domed, and the movement is an automatic calibre 2236. Replica versions of this reference come in several grades. Grade decides how close a copy sits to the original.
Genuine 279160 specs
Rolex builds the 279160 inside the Lady-Datejust 28 family. It carries a sapphire crystal, a date window at 3 o'clock, and a Twinlock winding crown.
Fake Rolex 279160 Information: What You Need to Know
- Case: 28 mm, Oystersteel, domed bezel, screw-down crown.
- Movement: calibre 2236, automatic, Syloxi hairspring, 55-hour power reserve, 28,800 vph.
- Water resistance: 100 m.
- Bracelet: Jubilee with five-link rows or Oyster with three-link rows, steel, folding clasp.
- Dials: white, silver, pink, blue, champagne, plus diamond-set markers on some variants.
Where replicas differ
Replica factories copy the outside first: case, dial, bracelet. The movement gets less attention. A copy of the 279160 holds a small automatic caliber from a third-party supplier, or a quartz movement in the lower grades. Neither one is calibre 2236.
Three points show up in photos and on the wrist:
Fake Rolex 279160 vs Real: How to Tell Them Apart Before You Buy
- Bezel profile. The domed steel bezel on the original has a polished slope and a narrow top edge. Copies often show a wider flat top.
- Dial print. Rolex aligns the coronet, the ROLEX text, and the date window on one center line. Copies drift on spacing and font weight.
- Seconds hand. Calibre 2236 beats at 28,800 vph. A 21,600 vph copy shows a slower sweep.
Checks before you buy
- Measure the case across the bezel. 28 mm, crown excluded.
- Look at the cyclops. The lens sits over the date window and magnifies 2.5x on the original.
- Check the serial engraving between the lugs, and check the caseback for a sticker.
- Ask which movement is inside. A seller who names the caliber opened the case.
- Check the end links. Gaps at the lugs show on photos taken at an angle.
Limits of a 279160 copy
A copy does not carry the Syloxi hairspring, the Rolex finishing, or the Rolex service network. Water resistance claims from replica sellers are not tested to the 100 m rating of the original. Resale value is close to zero. Reference and serial engravings on a copy will not match a Rolex warranty card.