Short answer
A "replica hippocampus 2011" is a counterfeit watch sold under two labels. Hippocampus is the seahorse engraved on the caseback of Vacheron Constantin Overseas watches. 2011 is the year a seller puts on the listing. Vacheron Constantin catalogs the line as Overseas. The current catalog has no model called Hippocampus. Treat the name as a dealer label, not a factory reference.
Where the word comes from
The hippocampus is a sea creature from Greek myth, half horse and half fish. Vacheron Constantin engraves it on the solid caseback of Overseas watches. The Overseas line launched in 1996 and kept the motif across later references. Dealers in Asia shortened "Overseas" to "Hippocampus" in listings, and the habit spread to replica catalogs.
What 2011 points to
In 2011 the Overseas was a steel and gold sports line with integrated bracelets and the half Maltese cross link shape. Vacheron Constantin redesigned the line in 2016. A watch sold as a "2011 hippocampus" should therefore show the older case, the older bracelet, and a solid caseback. If the photos show the 2016 case with a display back, the year and the name do not match.
Checks on a replica
- Caseback: genuine engraving is deep, with visible fin lines. Copies show a shallow stamp with soft edges.
- Movement: a genuine 2011 Overseas uses an in-house automatic caliber. Copies use a decorated Miyota, an ETA clone, or a Chinese automatic.
- Bracelet: check the taper and the cross shape of each link. Copies lose the taper.
- Date: check the font and the alignment inside the window.
- Weight: steel Overseas cases run heavy. Copies feel light in the hand.
- Crystal: genuine sapphire sits flush. Copies often sit proud of the bezel.
Price and market
Replica sellers quote 100 USD to 600 USD for Overseas copies. We cannot verify those figures. Genuine steel Overseas watches from that period sell on the secondary market for five figures in USD. A price far under market is the clearest sign of a fake.
Legal note, United States
Counterfeit watches violate US trademark law. Import of counterfeits is barred, and CBP seizes shipments at ports of entry. Trafficking in counterfeit goods carries civil liability and criminal penalties under 18 U.S.C. 2320. A single watch bought for personal use is lower risk, but the goods can still be seized.
Questions for a seller
- Which reference number is stamped between the lugs?
- Which caliber is inside, and can the seller show the rotor and the balance?
- Does the caseback engraving show fin lines on the hippocampus?
- Is the watch in hand, or is the photo from a factory album?
Vague answers point to a stock photo from a wholesale catalog. That is common with 2011 Overseas copies.