The Short Answer

The reference 116710LN is the stainless steel GMT-Master II with a black Cerachrom bezel, a black maxi dial, and a green 24-hour hand. A replica earns the "1:1" label only when the case measures 40 mm across, the bezel insert carries platinum-tone numerals with no luminous pip at the top, and the movement drives a true jumping GMT hand. Most inexpensive copies fail on the bezel font, the cyclops magnification, and the crown action. Check those three things first, then work down the rest of the watch.

Before You Buy

  • Ask the seller which exact reference the factory copied, since listings blend 116710LN with 116710BLNR and add stray letters.
  • Have a digital caliper, a 10x loupe, and a microfiber cloth on hand.
  • Get the return window confirmed in writing before you pay.

How to Inspect a Replica 116710LN

  1. Ask the seller for the case measurement in millimeters, both lug tip to lug tip and across the case at 3 to 9 o'clock.
  2. Measure the case yourself when it arrives. The genuine width is 40 mm, and anything at 41 mm or more sits wrong on the wrist.
  3. Examine the bezel insert under the loupe. The numerals should be thin, filled with a platinum-gray tone, and the top should be a plain triangle with no lume dot.
  4. Turn the bezel. It should move in 24 clicks, bi-directional, with no back play and no scraping sound.
  5. Check the cyclops. Genuine magnification is roughly 2.5x, and the date should fill the lens without touching the edges.
  6. Study the dial printing. The coronet sits centered, and the GMT-MASTER II text lines up level with the 12 o'clock marker.
  7. Shine a light across the hands. The 24-hour hand should be green with a green arrow tip, while white or pale yellow signals a parts-bin build.
  8. Ask which movement is inside. A true GMT clone lets you set the hour hand on its own while the minute hand keeps running.
  9. Test the jump-hour function through a full 24-hour cycle and note any stiffness or skipped dates.
  10. Inspect the bracelet. Center links are polished, outer links are brushed, and the clasp should close with a firm double-lock snap.
  11. Check the rehaut engraving. The letters should be crisp and evenly spaced around the inner flange.
  12. Pressure-test the case, or at minimum have the gasket seating checked, before you wear it near water.

Red Flags on Cheap Copies

  • A luminous pip on the bezel triangle, which the genuine 116710LN does not have.
  • Fat, blocky bezel numerals with flat white paint.
  • A 3x or 4x cyclops that makes the date look oversized.
  • A GMT hand that moves only when the minute hand moves.
  • Lugs that taper too sharply or sit too thick at the top.

Wearing and Care

Treat a replica like a mechanical watch, not a disposable. Wind it 20 turns before the first wear, keep it away from magnetic sources such as tablet covers, and rinse the case with fresh water after contact with salt water or sunscreen. Have the gaskets checked once a year if you swim with it. Store it on a soft surface so the polished center links do not pick up scratches.

Reference Note

Rolex lists this watch as the 116710LN. The trailing "R" that appears in some search terms and marketplace titles is a typo, not a separate model. If a seller claims the R marks a different version, treat that as a warning sign.