Editorial note: this guide does not cover where to buy counterfeit IWC watches, because selling or importing them is illegal in the United States. What it does cover is how the IW545183 reference works, how to tell a genuine IWC from a counterfeit, and which legal alternatives give you the same look on the wrist. Our top pick for anyone drawn to this reference is a genuine pre-owned IWC bought from a dealer who can show service history, with a non-branded dress watch as the runner-up. We judged each route on four criteria: legality, resale value, serviceability, and how closely it matches the original case proportions and dial design.
Start with the reference number itself
IWC Schaffhausen uses IW-prefixed reference numbers, and the full number identifies case material, dial variant, and strap. The same base reference can appear in several metal and dial combinations, which is why two watches with nearly identical reference numbers can differ in price by thousands. Before you compare anything, look the number up in the manufacturer's own catalog rather than in a marketplace listing, because sellers sometimes round or misstate a reference to make a watch seem rarer than it is.
Route 1: Genuine and pre-owned
Pros
- Legitimate ownership, clean title, and no customs exposure
- Holds value and can be resold, serviced, and insured
- Documented movement, case number, and service records
Cons
- Highest upfront cost
- Desirable references sell quickly and often above list
- Servicing an in-house movement is not cheap
This is the right route if you want one watch to keep for years and you care about resale. Buy from a dealer who will put the reference number, case number, and condition in writing.
Route 2: Non-branded watches in the same style
Pros
- Completely legal, with no trademark risk
- Often uses robust, easily serviced movements
- You get the dress-watch proportions without the collector premium
Cons
- No brand recognition and no meaningful resale
- Finishing and dial quality vary widely by maker
- Never identical to the original in detail
Choose this route if you like the aesthetic, not the logo. Look for a maker that publishes its movement and warranty terms, and buy from a retailer with a return window.
Route 3: Counterfeit, and why we do not recommend it
Counterfeits of Swiss references are sold as authentic-looking goods, but the legal picture is straightforward: importing counterfeit merchandise into the United States is prohibited, shipments are subject to seizure, and the buyer has no recourse when a watch arrives damaged or stops running. Inside, counterfeit movements are frequently unmarked, use plated rather than solid components, and cannot be serviced by any authorized watchmaker. That combination of legal exposure, zero warranty, and no resale value is why the counterfeit route loses on every criterion except the sticker price.
How to check a watch before you pay
- Match the reference number against the manufacturer's catalog, including dial and case metal.
- Ask for the case number and movement photos, not just dial shots.
- Confirm the warranty card carries a dealer name you can verify independently.
- Request a return period long enough for an independent watchmaker to inspect the movement.
- Pay by a method with buyer protection, never by irreversible transfer.
Recommendation by use case
If you want one watch to wear daily and eventually sell, buy genuine pre-owned. If you want the look at a low entry price and do not care about the name on the dial, buy a non-branded dress watch from a maker with published specs. If you are chasing the reference number for its own sake, save for the real one. Skip the counterfeit market entirely: it is the only option here that can cost you the watch and the money.