Answer
A replica Speedmaster Apollo 17 is a watch that copies the Omega Speedmaster Professional Apollo 17 40th Anniversary Limited Edition. Omega released the original in 2012. Omega made 1,972 pieces. The original uses the Omega calibre 1861 movement. A replica uses a different movement, often made in China. A replica costs between $200 and $500. The original sold for $5,900 at launch. Omega does not make or authorize replicas.
What the original is
The Omega Speedmaster Apollo 17 40th Anniversary Limited Edition has a 42mm stainless steel case. The caseback shows the Apollo 17 mission patch. The dial is black with gold applied indices. The crystal is sapphire. The original has a 48-hour power reserve. The original is water resistant to 50 meters. The original comes with a stainless steel bracelet and a nylon strap.
How replicas differ
Replicas copy the outside. The case size is often 42mm. The dial layout is similar. But details differ. The font on the dial may be wrong. The subdial spacing may be off. The caseback engraving is often shallow. The gold color on the indices may fade. The crystal may be mineral glass, not sapphire.
Movement types
Most replicas use a Chinese clone of the Lemania 1873. Some use a Seagull ST19. The Seagull ST19 is a manual wind movement. It has 21,600 vibrations per hour. It has a power reserve of about 40 hours. The original calibre 1861 has 21,600 vibrations per hour and a 48-hour power reserve. A replica movement is not as accurate. A replica movement is not as durable.
Materials and construction
Replica cases are often 316L stainless steel. The original uses 316L stainless steel. But replica finishing is rougher. Replica bracelets may have hollow end links. The original has solid end links. Replica crystals may be mineral glass or sapphire. Ask the seller for the crystal type. Replica lume is often weak. The original uses Super-LumiNova.
Buying considerations
Check the seller's return policy. Check photos of the actual watch. Ask for a movement photo. Ask for the caseback photo. Prices range from $200 to $500. A price below $150 often means low quality. A price above $600 is too high for a replica. The original sells for $8,000 to $12,000 on the secondary market. That price depends on condition and box and papers.
Legal notes
Buying or selling a replica watch can be illegal in the US. The Trademark Counterfeiting Act of 1984 makes it a crime. Customs can seize replica watches. Omega can sue sellers. A replica is not a collectible. A replica has no resale value to Omega collectors.