To tell if an Explorer 16570 is fake, check five things: the fixed 24-hour bezel engraving, the dial printing and lume plots, the way the 24-hour hand sets, the movement inside the case, and the reference and serial engravings between the lugs. A genuine Explorer II 16570 has crisp bezel numerals with even paint fill, tight dial text, a caliber 3185 or 3186 movement with an independently settable hour hand, and clean stampings on the case. A mismatch in any of those areas points to a counterfeit.
Rolex Explorer 16570 Clone vs Original: Which is the Better Choice?
The 16570 ran from 1989 to 2011 in a 40 mm steel case, so the market holds a wide mix of genuine examples, worn parts, and assembled watches. Judge the whole watch, not one detail.
Start With the 24-Hour Bezel
The bezel is fixed and brushed, with engraved numerals and a black fill. Compare the following against a known genuine example:
explorer 16570 black dial replica
- Numerals sit sharply cut with square shoulders, not rounded or shallow.
- Paint fill is flat and even, without overflow onto the brushed surface.
- The font weight matches Rolex specs across all 24 numbers.
- The triangle at the top is symmetrical and correctly proportioned.
Fakes often get the font slightly wrong, use a softer engraving, or fill with a paint that sits proud of the metal. Run a fingernail across the bezel. Genuine engraving feels like a fine cut, not a scratch.
Dial Printing and Lume
Text on a genuine 16570 is applied with clean edges and consistent spacing. Look at the word spacing in "SUPERLATIVE CHRONOMETER OFFICIALLY CERTIFIED" and the alignment of the crown coronet above the name. On a fake, letters crowd together, the font weight drifts, or the printing sits slightly off center.
Lume is a useful dating tool as well as a check. Early examples carry tritium dials marked SWISS T < 25. Later production moved to Luminova and then Super-LumiNova, marked SWISS or SWISS MADE. The lume should sit inside its plot without spilling, and older tritium should age to a warm tone rather than bright white.
White Polar dials from early production sometimes show fine hairline cracks in the lacquer, known as a spider dial. It is a genuine quirk, so do not treat it as proof either way.
How the GMT Hand Actually Sets
This is one of the hardest details for a counterfeit to fake. On the 16570, the 24-hour hand is tied to the movement and the local hour hand jumps in one-hour steps when you pull the crown to the second position. The date changes with the jumping hour hand.
- Pull the crown to position two and turn. The hour hand should jump, not sweep.
- The 24-hour hand should stay fixed in relation to the minute hand.
- The date should advance only when the hour hand passes midnight.
If the hour hand sweeps smoothly, or the 24-hour hand moves with the bezel-style offset, the movement is not a genuine Rolex caliber.
Movement Checks
Most 16570 watches run the caliber 3185, with the 3186 appearing in later production. Through a display case back, which genuine 16570 does not have, or during a service, look for Geneva stripes, engraved Rolex markings on the bridges, and a signed rotor. The balance should oscillate at 28,800 beats per hour with a smooth sweep and hacking seconds.
Copies often use a generic GMT movement with a decorated rotor. A watchmaker can confirm the caliber in minutes and that is the only check that settles the question.
Case, Crown, and Engravings
Remove the bracelet and look between the lugs. You should find the reference 16570 at the 12 o'clock side and the serial at the 6 o'clock side, stamped cleanly into the metal. Engravings that look laser-etched, shallow, or inconsistently spaced are a warning sign.
Check the crown guards for even, symmetrical shaping, and the crown for smooth threading and a firm click when screwed down. Genuine 40 mm cases have a specific lug profile that many fakes get slightly fat or slightly narrow.
Bracelet and Clasp
The Oyster bracelet on a 16570 should have solid end links that fit the case with no gaps and no rattle at the lugs. The clasp carries correct stampings, and the crown on the clasp is sharply defined rather than blurry. A loose, poorly finished bracelet is common on copies.
Crystal and Cyclops
The crystal is sapphire with a cyclops lens over the date at 3 o'clock. On genuine watches the lens magnifies the date roughly 2.5 times and the date sits centered under it. Blurry magnification, an off-center date, or a plastic feeling crystal are signs to look closer.
Documents, Price, and a Second Opinion
A price far below the current market for a 16570 is the oldest signal there is. Boxes and papers help but they are also copied, so treat them as supporting evidence rather than proof. Ask for service records, buy from a seller who accepts returns, and have the watch opened by a qualified watchmaker before money changes hands. That final step is the only one that answers the question with certainty.