Is IW93858 a Real IWC Reference?
No. IW93858 does not match any reference number in IWC's published catalog. Since the early 2000s the brand has written references as IW followed by four digits for the model family and two digits for the version, such as IW377709 or IW500705. A five-digit string like 93858 does not fit that format, and no IWC family code in the 9000s is in current production. A watch sold as an IW93858 is therefore one of three things: a real IWC listed under a mistyped or shortened reference, a vintage piece whose number was copied wrong, or a replica carrying a made-up code. The caseback tells you which one you are looking at.
Prerequisites
- A macro photo of the caseback showing every line of engraving
- A 10x jeweler's loupe
- The full listing text and asking price
- The reference number the seller claims the watch copies
How to Check an IW93858 Listing
- Ask the seller for the complete caseback string. Genuine IWC casebacks carry the full six-digit reference, the serial number, the case material, and the water resistance rating. A seller who answers with IW93858 alone has not read the watch.
- Compare the format. Count the digits after IW. Four digits for the family plus two digits for the version is the modern standard. Five digits means a digit was dropped or added somewhere in the listing.
- Look up the number on IWC's official site or ask an authorized dealer to run it. If nothing comes back, the reference does not exist in the catalog.
- Photograph the caseback under raking light and compare the engraving with a confirmed example of the same model family. On genuine watches the engraving is laser-cut and shallow, the font is consistent, and the spacing is even. Replicas show thick filled lettering, uneven baselines, and misspelled city names.
- Match the serial number to the reference. IWC serials fall into known date ranges. A serial from the mid-1990s paired with a 2015 reference points to a rebuild or a counterfeit.
- Inspect the movement. Ask for a photo with the caseback removed, or take the watch to a watchmaker. Genuine IWC movements carry the brand's own markings, finishing, and rotor engraving. A generic movement under a printed plate is the clearest sign of a replica.
- Compare the price with the resale market. A current steel IWC holds a large share of retail on the used market. A price at 5 to 10 percent of retail is not a bargain, it is a counterfeit.
- Get written authentication from an IWC-authorized service center before money changes hands. A service estimate letter is enough.
Red Flags in Listings That Use IW93858
- The reference number changes between photos or between the listing and the warranty card
- No serial number, or the same serial repeated across several listings from one seller
- Stock factory photos instead of photos of the actual watch
- Papers printed with a model name that does not match the caseback
- Pressure to pay outside a protected platform
Where the Number Comes From
Most searches for IW93858 trace back to one of four sources: a garbled version of a real six-digit reference, a typo in a marketplace title, a replica seller's internal product code, or a chat forum post about a fake. The check stays the same in every case. Read the caseback, confirm the digit count, look the number up, and inspect the movement. If the reference does not exist in IWC's catalog, no box, card, or receipt will make it real.
If You Already Own One
Take the watch to an IWC-authorized service center and request a written assessment. If the watch is a replica, ask the seller or platform for a refund in writing before you do anything else, and keep the listing page and payment records. If you bought it as a genuine IWC, a written statement from the service center is the document you need to open a dispute or a claim.