A "replica Omega Constellation 2018" almost always refers to a copy of the fifth-generation Constellation that Omega introduced in 2018: the 39 mm and 36 mm Co-Axial Master Chronometer models with a pie-pan dial, the returned "claws" at 3 and 9 o'clock, and a tapered mono-rang bracelet. No copy is a genuine Omega, and none of them holds the METAS Master Chronometer certification that defines the real reference. What you can compare is case size, dial finishing, bracelet construction, and the movement, which in better replicas is a Japanese or Chinese automatic dressed up to resemble the Omega calibre 8800.
What the 2018 Constellation Actually Is
Omega rebuilt the Constellation line for 2018 and moved it away from the chunky 2009 design. The new case measured 39 mm for the main steel and gold two-tone pieces, with a 36 mm version for smaller wrists and a 28 mm quartz line. The dial became a true pie-pan with a brushed outer ring and a textured center, and the case profile was slimmed so the watch sat closer to the wrist. Inside sat the Co-Axial Master Chronometer calibre 8800, a movement rated to 15,000 gauss and certified by METAS to run within 0 to +5 seconds a day. Water resistance stayed at 50 meters, and the bracelet was a single-link mono-rang design with a butterfly clasp.
Core Specs to Compare Point by Point
- Case diameter: 39.0 to 39.2 mm on the men's model, measured with calipers across the mid-case, not across the claws.
- Thickness: the genuine 39 mm sits in the 12 to 13 mm range, and a copy that reads 14 mm or more will sit wrong on the wrist.
- Crystal: domed sapphire with anti-reflective coating on both surfaces. Single-side AR shows as a pale, slightly milky reflection.
- Date window: positioned at 6 o'clock with a stepped frame, which is where most cheap copies drift.
- Bracelet: mono-rang links with beveled edges, end links that meet the case with no visible gap, and a push-button butterfly clasp.
- Caseback: sapphire exhibition back showing a decorated rotor with the Omega and Constellation engravings.
Which Movement Is Inside
There is no replica of the calibre 8800 in the true sense. The coaxial escapement is not something any replica factory builds, so a copy uses an off-the-shelf automatic with a decorative plate and rotor. Common choices are the Miyota 9015 at 28,800 vibrations per hour, the ETA or Sellita 2824 pattern at 28,800 vph, and the Miyota 8215 at 21,600 vph. The genuine 8800 runs at 25,200 vph with a 55-hour power reserve. That difference is measurable with a timegrapher, and it is the single most reliable way to separate a real Omega movement from a lookalike.
Claims of a "Swiss ETA inside" should be treated as marketing. ETA stopped selling movements to outside parties years ago, so any ETA-marked calibre in a modern replica is either an Asian clone with ETA stamping or a refurbished part.
Dial, Case, and Bracelet Tells
Look at the pie-pan step under low-angle light. The genuine dial has a crisp transition between the flat outer ring and the textured center, with applied indices that sit flush and reflect evenly. Cheap copies show a soft or rounded step and printed markers that look slightly thick. The claws at 3 and 9 should have a polished top face against a brushed case flank; replicas often buff the entire claw. Lume is another marker, since the genuine uses Super-LumiNova that glows for hours, while budget copies fade in minutes.
Weigh the watch. A genuine 39 mm steel Constellation on the full bracelet lands near 130 to 150 grams. A copy with hollow links and a plated case will come in noticeably lighter, and the clasp will feel loose when you press it.
How to Inspect a Replica Before You Buy
- Request fresh photos with a handwritten date card, since catalog images are lifted from Omega listings.
- Ask for caliper photos of the case diameter and thickness.
- Request a timegrapher screenshot to confirm the beat rate and daily rate.
- Zoom in on the date window to verify the 6 o'clock position and the stepped frame.
- Check the crystal reflection angle for a double AR coating.
- Look at the caseback photo for a decorated rotor with clean engraving rather than a plain plate.
- Ask the seller to weigh the watch on a scale and send the reading.
- Confirm the clasp type and ask for a photo of the bracelet end links seated against the case.
- Verify the return policy in writing before payment.
Legal and Shipping Reality in the United States
Importing counterfeit goods into the United States is prohibited, and U.S. Customs and Border Protection can seize a replica watch and issue civil penalties. Selling counterfeits carries added exposure under trademark law. Buying a replica for personal use is not the same as trafficking, but a parcel can still be held or destroyed, and no seller can guarantee delivery.
FAQ
Does any replica use a real coaxial movement?
No. The coaxial escapement is an Omega design and is not available in replica form. Any listing that claims otherwise is inaccurate.
Can a jeweler tell it is a replica?
Yes. Case finishing, crown threading, bracelet feel, and the movement under the caseback make it clear to anyone who handles the real watch.
Is the 36 mm version copied as well?
Yes, both the 39 mm and 36 mm sizes exist in replica form, and the same inspection steps apply. The 28 mm quartz line is copied far less often.