A fake IW3270 is a counterfeit IWC Pilot's Watch Mark XVIII, the 40 mm reference family sold as IW3270xx. The fastest way to expose one is to check five things in order: the case back engraving, the dial printing, the date wheel, the lume and the sapphire coating. Genuine Mark XVIII watches have a solid steel back with a deep Ju 52 aircraft engraving and a caliber 35111 inside, and most fakes fail at one of those five points.
What are the genuine IW3270 specifications?
Knowing the real numbers makes a fake easier to catch, because counterfeiters often build to the wrong dimensions.
- Case: 40 mm stainless steel, about 10.8 mm thick, titanium on some references
- Movement: IWC caliber 35111, automatic, 28,800 vph, 42 hour power reserve
- Crystal: sapphire with anti-reflective coating on both faces
- Case back: solid steel, engraved with the Ju 52 plus reference and serial numbers
- Water resistance: 6 bar (60 m)
- Dial: matte black or blue, white printed numerals filled with Super-LumiNova, date at 3 o'clock on most references
- Protection: soft iron inner case for magnetic resistance
How do you spot a fake IW3270?
Work through these checks in order and a flaw usually appears within a minute.
1. Case back engraving
Genuine engraving is cut deep into the steel with crisp edges and a visible shadow line. Fakes are laser etched, so the Ju 52 motif looks flat and the lettering has soft, rounded edges. The reference and serial numbers should be sharp and should match the certificate.
2. Dial print
The IWC wordmark, the Schaffhausen line and the numerals should be razor sharp under a loupe with no ink bleed. Fake dials show thick strokes, uneven letter spacing and numerals that sit slightly off the index positions.
3. Date wheel and window
Genuine date printing is thin, centered and level with the window frame. Counterfeits commonly show an off-center number, a dirty date disc or a font that is too bold.
4. Lume
Real Super-LumiNova glows a pale green or blue and fades evenly over hours. Fake lume often has a greenish tint in daylight and dies within minutes.
5. Crystal and coating
Double anti-reflective coating makes the crystal close to invisible, with only a faint blue sheen at steep angles. A fake with single or no coating shows strong reflections and a grey cast over the dial.
6. Hands and crown
Genuine hands are polished on the bevels and the lume fill sits flush inside the frame. Fake hands look flat, and the crown engraving is shallow or off center.
7. Movement behavior
The Mark XVIII has a solid back, so judge the movement by the seconds hand and the sound. Caliber 35111 beats at 28,800 vph for a smooth sweep, while many fakes run at 21,600 vph with a visibly choppier tick.
Does the Mark XVIII have a display back?
No. Every IW3270 reference uses a solid engraved case back. Any Mark XVIII with a glass back is a fake or a modified watch, and that single detail settles the question.
How good are the best IW3270 replicas?
Top-tier replicas copy the 40 mm case, the dial layout and the crystal closely enough to look right in a photo. They still fall short on engraving depth, lume brightness, date font and hand finishing. Buyers who inspect those four areas rarely get fooled in person.
Fake, replica or counterfeit: does the word matter?
Fake and counterfeit describe a watch sold as a genuine piece, which is fraud. Replica describes a copy sold openly as a copy. An IW3270 becomes a problem only when a seller claims it is real.
FAQ
Is the IW3270 the same as the Mark XVIII?
Yes. IW3270 is the reference prefix for the IWC Pilot's Watch Mark XVIII, introduced in 2016 as the successor to the Mark XVII.
How much does a genuine IW3270 cost?
Retail ran roughly 4,900 to 5,500 USD depending on the reference, and pre-owned examples trade around 3,000 to 4,500 USD. A new offer far below that range is a warning sign.
Can I check an IW3270 serial number online?
No public database exists. Genuine serials are engraved on the case back and printed on the certificate, so confirm with IWC service rather than an online checker.
What is the most common fake IW3270 flaw?
Shallow case back engraving. It appears on nearly every counterfeit and is the hardest detail to reproduce at low cost.