The short answer
Yes, IW376073 gets copied, and the copies photograph well. A photo cannot show you bezel action, case weight, or how crisp the dial text looks under a loupe, which is exactly where a replica falls apart. If a listing is priced at a small fraction of the going rate, the seller has no history, and the watch comes with vague paperwork, treat it as a replica until someone proves otherwise. Genuine examples come with a real trail: service records, a known seller, and a serial you can trace.
What the reference actually is
IW376073 sits in IWC's Aquatimer chronograph family, the dive line with a rotating bezel, a screw-down crown, and a chronograph. The genuine watch is a steel dive chronograph with a sapphire crystal, applied markers, and a level of case finishing that costs real money to produce. Exact configuration varies by version, so pull up IWC's own reference records and confirm the dial layout, bezel type, and case size before you judge any listing. Buyers who skip that step are the ones who get burned.
The bezel is the first tell
Depending on the version, the bezel is either the internal rotating type or the external SafeDive design. Either way, the action is where replicas give up. A genuine bezel turns with firm, even resistance and clicks into place with a clean detent. Replicas feel gritty, loose, or have noticeable backlash, and some do not line up with the markers at all. Turn it twenty times. If it feels cheap, walk.
IW376073 Counterfeit: How to Spot a Fake IWC Pilot's Chronograph
Dial, hands, and crystal
Printing on a real dial is sharp enough that you can read the smallest text under magnification without the strokes bleeding together. On a replica, the logo often sits slightly off axis, the lettering thickens, and the lume is a flat green instead of the correct shade. Check the date window. It should be cleanly cut with the numeral centered, not crowded to one side. Hands on copies usually show rough edges on the polished bevel, which you can catch with a phone camera zoomed in.
Caseback, serial, and the full set trap
Look at engraving depth and font. Replicas cut shallow, and the same case number appears on unit after unit, which is the giveaway. Photograph the caseback and compare the font against a verified example. Boxes and papers mean nothing on their own; replica sellers have been shipping convincing packaging for years. What matters is a serial that matches the movement and a seller willing to let a watchmaker open the case.
Movement
Most genuine Aquatimer chronographs run an IWC-finished caliber derived from the Valjoux 7750 family. The finishing, rotor engraving, and regulation are all IWC work. Replicas use unmodified Chinese or generic chronograph movements with no perlage, wrong rotor text, and sloppy regulation. Many of these watches have solid casebacks, so this check usually needs a watchmaker with a case opening tool. Budget for it before you buy, not after.
Price math and seller behavior
If the asking price is five to ten percent of market, it is not a bargain. Replica wholesalers cluster in the low three figures up to just under a thousand dollars for this class of watch, and they list dozens of references in every colorway. A real dealer has a narrow inventory, a phone number, and answers that do not sound scripted. Sites that promise "wholesale Swiss" pricing on anything you can name are replica operations, no exceptions.
Checklist before money moves
- Ask for a clear caseback photo and a movement photo.
- Ask for service history with dates and a watchmaker name.
- Meet at an independent watchmaker for an opening, or use an escrow service.
- Cross-check the exact reference against IWC's published specs.
- Pay with a method that allows a chargeback if the watch is not as described.
Do all five and the odds shift in your favor. Skip them and the discount you thought you found is the price of the lesson.