A fake IW3270 is a counterfeit copy of the IWC Pilot's Watch Mark XVIII, the reference family numbered IW3270xx. A genuine watch pairs a 40 mm stainless steel case with the IWC caliber 35111 automatic movement, a matte black dial, and a solid engraved caseback. Most fakes copy the outline but miss the crown engraving, dial print sharpness, date font, case thickness, and caseback depth.

What does the real IW3270 look like?

The Mark XVIII measures about 40 mm across and roughly 11 mm thick, with a soft-iron inner case for magnetic resistance and 6 bar of water resistance. The crystal is sapphire with anti-reflective coating on both faces, which makes the dial look almost open at certain angles.

The dial carries printed white numerals, hands filled with lume, a date window at 3 o'clock, and the IWC name above Schaffhausen. The caseback is solid steel, engraved with the reference, serial number, and model name.

How do you tell a fake IW3270 from a real one?

Start with the case and crystal, because those are the hardest parts to copy at low cost.

• Thickness and profile: copies often run 1 to 2 mm thicker and lose the flat, slightly stepped bezel edge.
• Crystal: double AR coating gives a faint blue tint and near-invisible glass. Fakes tend to be single-coated and reflect more light.
• Crown: the IWC logo is cut cleanly and the threads turn smoothly. Fake crowns look stamped and feel gritty.
• Dial print: genuine numerals have crisp edges and even lume fill. Copies show bleeding, uneven glow, or a squared-off date font.
• Caseback: engraving on a genuine watch is deep, even, and centered. Fake engraving is shallow and the serial format often does not match IWC records.
• Strap and packaging: Santoni leather, correct buckle markings, and a matching warranty card count. Fakes ship with generic boxes and blank cards.

Can you check the movement without opening the case?

Not with confidence. The IW3270 has a solid caseback, so the movement stays hidden until a watchmaker removes it. Genuine watches use caliber 35111, based on the Sellita SW300-1 and finished with Geneva stripes.

Many fakes use cheaper Chinese or clone movements that beat at a different rate, which a watchmaker can confirm in minutes with a timegrapher.

Why are IW3270 fakes so common?

The Mark XVIII is a simple three-hand watch with a plain dial, which makes it easier to copy than a complicated chronograph. Demand stays high because the design is clean and the real watch sits in the low four figures, a range that attracts buyers hunting for bargains. That combination keeps counterfeit supply steady.

Is buying a fake IW3270 legal in the US?

No. Trafficking in counterfeit goods is a federal crime and importing them is barred. Shipments get seized by customs, and buyers have no warranty, no service support, and no legal recourse if the watch fails. Reselling a counterfeit as genuine can also expose the seller to civil liability.

FAQ

How much should a real IW3270 cost?

Genuine Mark XVIII watches sell new or used in the low thousands of US dollars depending on strap and condition. Any new example offered for a few hundred dollars is counterfeit.

Can a jeweler authenticate an IW3270?

Yes, if they handle IWC watches. A watchmaker can verify the movement, measure the case, and check the serial number against factory records.

Do fake IW3270 watches use real sapphire?

Some do, since sapphire is not expensive on its own. The coating, cut, and edge polish tend to differ, which is why the crystal still reads wrong in person.