A clone Speedmaster Pro is a replica of Omega's Moonwatch, usually built around a Seagull ST19 hand-wound chronograph instead of the real calibre 3861. You get the 42mm case, the tachymeter bezel, and the 3-6-9 subdial layout for a fraction of the price. You do not get the movement, the service network, or anything you can legally resell as an Omega. That trade is the whole story, and everything below is just detail on it.
Two different things get called a "clone"
Worth sorting this out before you shop. A homage is an unbranded watch that borrows the look, and it is legal. A clone carries Omega's name and logo, and it is not. Sellers blur the words constantly. If the dial says Speedmaster, you are in counterfeit territory, and that has consequences at the border and at resale.
The three tiers you will run into
- Quartz knockoff, roughly $25 to $60. Usually a flat mineral crystal, printed logo, and decorative subdials that do not do anything. The chronograph pushers often just start and stop a single central hand. Skip these. They look wrong from three feet away.
- Mid-tier mechanical, roughly $150 to $350. Real running chronograph, often an ST19 or a similar Chinese column wheel movement. Subdial positions start to line up with the genuine layout. Case finishing is decent but the lugs are usually too thick and the bezel print goes soft under a loupe.
- Top tier, roughly $400 to $800. Closer case geometry, sapphire or hesalite options, AR coating on the sapphire version, better dial printing, and a caseback that mimics the real engraving. This is the tier people mean when they say super clone. It is still a replica, just a careful one.
Tells I check first
Subdial spacing and size. On a proper Moonwatch layout, the running seconds sits at 9, the 30 minute counter at 3, and the 12 hour counter at 6. Cheap clones shrink or shift those and the dial instantly reads flat.
Bezel printing. Look at the tachymeter scale under a loupe. Sharp edges, correct dot placement near the 90 marker, and consistent numeral weight separate the good from the bad. Misaligned inserts are common on the lower tiers.
Case profile. The Moonwatch has a slim, twisted lug shape and a stepped dial. Clones tend to overbuild the lugs and lose the step, which changes how light hits the dial.
Crystal. Genuine hesalite has a warm dome with no AR coating and picks up hairline scratches you can polish out with Polywatch. Sapphire sandwich versions have AR on both faces. A clone with flat mineral glass or AR only on top looks off in daylight.
Caseback. Solid hippocampus caseback versus sapphire display is a real tell. Engraving depth on clones is usually shallow and the seahorse loses its texture.
Pushers and crown. A good chronograph movement has a crisp start, stop, and reset. Mushy pushers or a reset that does not snap back to zero means the movement is the weak link, and it will stay the weak link.
Movement reality
The ST19 is a legitimate column wheel chronograph derived from the Venus 175, so it is not junk. It runs at 21,600 vph, it hand winds, and it keeps reasonable time out of the box. What it is not: a Co-Axial Master Chronometer, METAS certified, or serviceable at your local watchmaker for a sensible price. Parts availability is thin and most shops will not touch a counterfeit. If it stops, you are largely on your own.
The honest math
Add up the watch, shipping, and the risk of a customs seizure, and you are often within range of a used genuine Speedmaster Reduced or an older 3570.50. Those hold value, can be serviced, and do not come with a story you have to manage. Buy the clone if you want the look on a wrist for a season and understand what it is. Do not buy it thinking you found a loophole.
Pre-purchase checklist
- Confirm whether the subdials actually function or are decorative.
- Ask for a macro shot of the bezel at the 90 marker.
- Ask for a side profile shot to judge lug thickness.
- Confirm crystal type and whether AR is on one side or both.
- Ask which movement, and whether spare parts exist for it.
- Check the seller's return policy in writing before paying.