A fake IW327012 is an IWC Mark XVIII Le Petit Prince that copies the 40mm steel case and blue dial but misses the details that decide authenticity: the date window at 3 o'clock, the thin white dial printing, the IWC caliber 35111 inside, and the solid caseback engraved with the Little Prince. The genuine reference was produced until 2022, when the Mark XX replaced the line, so every real IW327012 is now a secondhand watch. That retirement is exactly why counterfeits have spread across auction sites, social marketplaces, and classified apps.

What is the IW327012?

Reference IW327012 is the IWC Pilot's Watch Mark XVIII Edition Le Petit Prince, a 40mm stainless steel pilot's watch with a blue sunburst dial and a date window at 3 o'clock.

Inside sits IWC caliber 35111, a Sellita-based automatic with 25 jewels, 28,800 vibrations per hour, and about 42 hours of power reserve. Water resistance is rated at 6 bar, and the back is solid steel rather than a display crystal.

How can you tell if an IW327012 is fake?

Work through four areas in order: dial, case and crystal, movement, then paperwork. Most counterfeits fail the first two, and every honest check ends with the movement.

Does the dial printing look crisp?

• Genuine dial text, including the IWC logo and the Schaffhausen wordmark, is thin and sharp with even strokes. Fakes print heavier, and edges look fuzzy under a loupe.
• The date disc is white with black numerals and centers cleanly in the aperture. Counterfeits often show an off-center date or an oversized font.
• Hands are white with uniform luminescent fill. Replica lume is frequently blotchy or a different color temperature from the indices.

Do the case and crystal match the spec?

• A real Mark XVIII measures 40mm across and about 11mm thick, with a 20mm lug width. Many fakes come in at 42mm or thicker because they use a generic case.
• The sapphire crystal has anti-reflective treatment and looks almost invisible with a faint tint at steep angles. Mineral glass or cheap coated glass shows a heavy blue or purple sheen.
• The crown screws down smoothly and the bezel is polished steel with no tool marks or waviness.

Is the movement correct?

Genuine examples run caliber 35111 with IWC engraving and decorative finishing on the rotor and bridges. Because the caseback is solid, verifying this requires a watchmaker to open the case, so ask for that step before you pay.

Is the caseback engraving sharp?

The Mark XVIII Le Petit Prince carries an engraved Little Prince motif on a solid steel back, along with the reference IW327012 and a serial number on the outer ring. Genuine engraving has crisp relief, while counterfeit engraving looks shallow, polished over, or slightly blurred.

Do the box, papers, and strap check out?

A complete set includes the IWC presentation box, a warranty card, and a brown calfskin strap with a signed steel pin buckle. Serial numbers on the caseback, the card, and the paperwork should match each other exactly.

What does a genuine IW327012 cost?

Retail on the IW327012 sat near 4,700 to 5,000 US dollars before it was discontinued, and clean pre-owned examples now trade roughly between 3,200 and 4,200 dollars depending on completeness and condition.

Anything offered for a few hundred dollars is a counterfeit, a franken watch built from mixed parts, or a stolen-listing scam. Price alone rules out most bad listings before you inspect a single photo.

Are replica IW327012 watches easy to spot?

Low-end replicas are obvious in photos because the case proportions, dial text, and date font are wrong. High-end replicas of the Mark XVIII are harder and usually need the watch in hand, ideally on a timing machine, to separate from the real thing.

The reliable tells remain the movement under the caseback, the crystal clarity, and the dial printing at magnification.

FAQ

Does the real IW327012 have a display caseback?

No. The Mark XVIII Le Petit Prince has a solid caseback with the Little Prince engraving. A seller showing a sapphire back with a visible rotor is showing a different reference or a modified counterfeit.

What movement is in the genuine IW327012?

IWC caliber 35111, an automatic based on the Sellita SW300-1 with 25 jewels and roughly 42 hours of power reserve.

Is the IW327012 still in production?

No. IWC retired the Mark XVIII in 2022 when the Mark XX launched, so a claim of a brand new IW327012 from an authorized dealer deserves hard verification.

How large is the IW327012 case?

It measures 40mm in diameter, about 11mm thick, with a 20mm lug width and 60 meters of water resistance.

Which strap came on the IW327012?

The Le Petit Prince edition shipped on a brown calfskin strap with a steel pin buckle signed by IWC. A generic strap is not proof of a fake on its own, but it should prompt a closer look at the rest of the set.