What small details make the biggest difference when identifying genuine IWC watches?

Hello everyone,

I’ve been spending some time learning more about IWC watches and noticed how often small details play a huge role in identifying authenticity things like dial printing, case finishing, movement markings, and overall proportions.

For experienced collectors here, I’d be curious to know:
• Which subtle details do you personally check first when evaluating an IWC?
• Are there any common red flags you’ve seen repeatedly over the years?
• Do these checks differ much between vintage and contemporary pieces?

Looking forward to learning from your experience and insights.
 

Hi,

A difficult question to answer. And a question that I think should not be answered. The reason for saying this is that every detail we supply can make it easier for the crooks that tries to make fakes look like genuine IWCs. And we don't want that, do we?

I apologise for being a wet blanket, but we have seen a lot of fakes here. Some obvious that are no problem, but also more subtle fakes. And we should all do our best to prevent this.

Best regards,

Henrik

When evaluating an IWC, I usually start with the dial—sharp, even printing, correct font spacing, and well-finished hands are key indicators of authenticity. Case finishing and proportions are next, as fakes often feel slightly off in thickness or edge sharpness. Common red flags include sloppy dial text, incorrect caseback engravings, and movements without proper IWC markings. These checks do differ between vintage and modern pieces, since vintage watches require more tolerance for aging, while contemporary models should show near-perfect finishing and alignment throughout.

I fully agree.

Experience definitely plays a role. I always buy the seller first and insist on a full refund if anything turns out to be wrong.

Key things to evaluate include servicing history (when available), confirming the watch is fully original with no aftermarket parts, and being especially cautious about over-polishing something often seen with some Japan-based second-hand retailers. The watch may look shiny and attractive, but in inexperienced hands it’s very easy to alter the original case geometry, sharp edges, and even the bracelet! 

Always insist on provenance and proper documentation. If it’s not there, walk away. I’m quite familiar with fakes, and these days even experienced dealers can be fooled by well-executed Frankenstein watches…

Hope that helps.
George

When identifying genuine IWC watches, several small details can make a significant difference. Personally, I check the dial printing first—genuine IWC dials should have sharp, well-defined printing with correct fonts and spacing. Case finishing is another critical aspect; authentic IWC pieces typically have flawless polishing and brushing with well-defined edges. The movement markings are crucial too—check for proper engravings and specific details on the movement, which should match the model. Proportions matter as well; an authentic IWC will have correct case size and symmetry in relation to the dial.

Common red flags often include incorrect font, misaligned text, or poorly finished case backs—especially on counterfeit models. For vintage pieces, pay attention to the serial number and the type of movement; certain movements were only used in specific years. There’s also a noticeable difference in overall quality between vintage and contemporary pieces, particularly in terms of movement craftsmanship and dial details, so those are great areas to focus on.