If you want the closest thing to a Rolex Explorer II 16570 without shopping vintage, the top pick in today's replica market is a high tier build with a clone 3186 style GMT movement inside a correctly proportioned 40 mm case. That pick wins on the criteria that decide everything for this reference: case profile and lug shape, dial and hand printing, the fixed 24 hour bezel, genuine GMT hand behavior, bracelet and end link fit, and the movement underneath. The sections below compare the three tiers you will actually run into and explain which one suits which buyer.
The Original 16570 in Plain Terms
Rolex built the Explorer II reference 16570 from 1989 to 2011. It is a 40 mm steel watch with a fixed 24 hour bezel, a fourth hand for a second time zone set from the crown, a sapphire crystal, and a 100 m water rating. Early production used the caliber 3185, later examples the 3186. Black and white dials both exist, and the white dial carries a much higher collector premium. Every replica gets measured against that baseline, so learn the baseline before you shop.
Criteria That Separate a Good Build from a Weak One
- Case geometry: about 40 mm across, roughly 12 mm thick, 20 mm lug width, crown guards with the right slope. Slab sided or oversized cases are the fastest tell.
- Dial and hands: correct font weight in the Explorer II text, flat lume plots, a seconds hand with the right counterweight, and a GMT hand that matches genuine proportions.
- Bezel: fixed, engraved 24 hour scale, matte finish, numerals that read cleanly from arm's length.
- Movement: a real GMT function where the hour hand jumps on its own, not a 24 hour hand driven straight off the hour pinion.
- Bracelet: solid end links that sit flush to the lugs, a clasp with clean stamping, and Oyster links without sharp edges.
- Crystal and cyclops: correct magnification and correct alignment over the date window.
Tier One: Entry Level Builds
These are the cheapest versions you will find. They photograph well on a marketplace listing and often fall apart under a loupe.
Pros
- Low cost of entry, so you can test whether you enjoy the 40 mm Explorer II shape at all.
- Usually available in both black and white dial variants.
- Easy to replace if one gets damaged.
Cons
- Case thickness and lug shape are commonly off, which shows in profile.
- The GMT hand often moves with the hour hand instead of independently.
- Bracelet end links leave gaps at the lugs and the clasp feels thin.
- Lume fades within minutes and the date font is frequently wrong.
Use case: a Halloween costume, a display piece, or a first look at the reference before you spend more. Do not buy this tier expecting a daily wearer.
Tier Two: Modified ETA Based Builds
This is the middle of the market. The watch carries a modified Swiss or Asian 2836 pattern movement with a GMT module added.
Pros
- The 24 hour hand tracks a second time zone, so the complication works the way the genuine watch does.
- Case and bracelet finishing is a clear step up from entry level.
- Movements of this family are well documented and any competent watchmaker can service one.
Cons
- Setting order differs from a genuine 3186, and the GMT hand can drift out of alignment over time.
- Crown position and stem height sometimes sit a fraction high.
- Dial printing and lume application still vary a lot between batches.
Use case: a strong pick for someone who wants the watch to actually function as a GMT and does not mind a slightly different setting sequence. Best value for regular wear.
Tier Three: High Tier Clone Movement Builds
This tier copies the caliber 3185 or 3186 layout, including the independent jumping hour hand. It is the top pick for anyone who cares about how the watch feels on the wrist and how it behaves when set.
Pros
- Correct setting behavior, including the jump hour hand for time zone changes.
- Case profile, crown guards, and 20 mm lug spacing closer to the genuine 40 mm shape.
- Better dial finishing, sharper bezel engraving, and a cyclops with proper magnification.
- Bracelet end links sit flush, which matters more than any single dial detail in person.
Cons
- Highest cost of the three tiers.
- Parts availability is narrower, so service means sourcing from the same channels you bought from.
- Stock varies by batch, so two examples of the same build can differ.
Use case: the right choice if the 16570 is the watch you actually want to wear, take photos of, and hand to a friend without hesitation. Pair it with a black dial for everyday wear or the white dial if you want the look that drives collector attention.
Tells to Check Before You Commit
- Lay the watch flat and look at the case from the side. A 16570 profile is slim, not tall.
- Pull the crown to the time setting position and check whether the hour hand jumps alone.
- Run a finger along the bracelet end links where they meet the lugs. Any lip means a gap.
- Look at the date window at an angle in daylight. The cyclops should magnify evenly without a blue ring.
- Charge the lume for a minute under a lamp, then check it in a dark room after ten minutes.
- Confirm the bezel is fixed and not a rotating GMT bezel from a different reference.
Legal and Practical Notes
Counterfeit and replica watches carry real legal risk in the United States and many other countries, including seizure at import. Replicas also cannot be serviced by an authorized Rolex watchmaker, and resale is limited. Treat any purchase as a personal wear decision rather than an investment, keep your expectations tied to the tier you buy, and never expect a replica to pass an authentication check by a trained dealer or a service center.
Bottom Line
Buy the tier that matches your use. Entry level for a costume or a shape test, mid tier if you want a working GMT on a budget, and the high tier clone movement build if the Explorer II 16570 is a watch you intend to wear often. Judge the case profile and bracelet fit first, because those two things are visible from across a table, while movement details only matter when you set the watch.