The short answer
Almost nobody mimics the Explorer II 1655 well, and the giveaway is rarely the dial. It is the case profile, the bezel engraving, and how the 24-hour hand behaves. If you are trying to tell a copy from the real thing, or deciding whether a "1655 style" watch is worth your money, those three details settle it faster than anything else on the watch.
Reference 1655 is the first Explorer II, introduced by Rolex in 1971. It was built for people spending days underground, where day and night stop meaning anything: a fixed steel bezel marked 1 to 24, an orange arrow hand tracking the second time zone, a 40mm case, and no rotating bezel at all. It stayed in the catalog until the mid 1980s and sold poorly at the time. That scarcity is exactly why the copy market keeps circling back to it.
Where the copies fall apart
- Case: the original has a slab sided midcase that tapers hard into the lugs. Copies run thicker, usually one to two millimeters deeper, because the movement needs the room. It reads as bulky on the wrist and flat in photos.
- Bezel: real 1655 numerals are engraved and filled, with crisp inner edges and a clean 24 at the top. Most copies stamp or print the bezel. Under a loupe the edges are soft and the spacing drifts.
- The 24-hour hand: on a genuine 1655 the orange arrow is a straight hand that moves with the hour hand. It does not set independently. Plenty of copies use a modern GMT movement where that hand jumps on its own, which feels like an upgrade and is simply wrong for this reference.
- Lume and dial aging: original tritium plots have aged unevenly into cream or pumpkin tones. Copies use bright white lume, or paint an even fake patina across every plot. Real aging is never that uniform, and it never matches the hands that closely.
- Crystal and cyclops: date magnification on the original sits near 2.5x. Copies often land closer to 2x with the magnifier at the wrong height, so the date looks small and slightly out of focus.
The legal side, without the hand waving
In the United States, a watch carrying Rolex trademarks without authorization is a counterfeit good. US Customs and Border Protection can seize and forfeit it on import, and the personal exemption that normally covers a single item for personal use does not extend to counterfeit merchandise. Selling one carries separate exposure under trademark counterfeiting statutes. That is the practical difference between a replica and an homage: an homage is a watch with its own brand name on the dial, and importing one is ordinary business.
Three things sold under the same word
- Homage: another brand's watch that borrows the fixed bezel and orange GMT hand. Legal, usually serviceable, and honest about what it is.
- Replica: Rolex markings on a watch Rolex did not make. This is the category that gets seized.
- Franken or modified: a genuine case paired with an aftermarket dial, hands, or bezel. Hardest to price, hardest to sell, and often described vaguely in listings.
If you actually want the look
The cheaper genuine route into an Explorer II is a later reference, not the 1655. The 16570 and 16550 share the fixed bezel layout and the same basic idea, and they trade for a fraction of 1655 money. If the point is the look rather than the name on the dial, fixed bezel GMT watches from established brands cover it, and you keep your money and your resale value. A replica keeps neither. Secondary market value on a counterfeit is close to zero, no watchmaker wants to service it, and parts availability is whatever the seller happens to have.
What I check first, every time
Start with the case thickness, then the bezel under a loupe, then whether that orange hand sets on its own. If a listing shows a jumping 24-hour hand and calls it a 1655, the rest of the description is not worth reading. Ask for movement photos and a caseback shot. Sellers who have nothing to hide send them.