If you are buying a fake pilots IW3270, the version worth your money is a high grade stainless steel build that holds the original 40 mm by 11 mm envelope around a Sellita SW300 based automatic, because the IWC Pilot's Watch Mark XVIII is a thin, quiet, three hand watch with almost no place to hide a mistake. The criteria that decide the outcome are case diameter and thickness, dial print and numerals, date wheel colour, anti reflective treatment on the crystal, movement type and finishing, and the quality of the strap or bracelet hardware.

What the IW3270 really is

The IW3270 reference group is the Pilot's Watch Mark XVIII, launched in 2016 as the successor to the Mark XVII. It is a time and date automatic with a 40 mm steel case, a matte black or blue dial, printed numerals rather than applied indices, a date window at 3 o'clock, sapphire crystal with an anti reflective coating, and a soft iron inner case for magnetic protection. The movement is calibre 35111, built on a Sellita SW300 base, with a power reserve around 42 hours. Case backs are solid and carry an engraved Junkers Ju 52, so the movement is never visible from outside.

That spare layout is exactly why the model is copied so widely, and it is also why copies are easy to grade. Large printed numerals, one date aperture and a flat crystal leave very little room for a maker to blur the details.

High grade IW3270 replica

A high grade copy is built to the correct 40 mm width and close to the original 11 mm thickness, with brushed case flanks, a polished bezel edge and a dial that reads black rather than grey under bright light. The movement is a Sellita SW300 or a decorated equivalent, and the date wheel matches the dial colour instead of showing a white disc on a black dial.

Pros

  • Case profile and weight sit the same on the wrist as the original.
  • Numerals are printed at the correct width and spacing, so the dial looks calm instead of crowded.
  • The movement accepts standard service parts and can be regulated by any competent watchmaker.
  • Crystal coating is genuine, which keeps the dial legible from an angle.
  • Strap or bracelet finishing is close enough that nobody notices the hardware.

Cons

  • Costs several times what a mid tier copy does.
  • Case back engraving is still shallower than the original under magnification.
  • No soft iron inner cage in most builds, so magnetic resistance is not equivalent.
  • Availability shifts with each production batch, and the good runs sell out first.

Best for someone who wears the watch daily, cares about thickness and crystal clarity, and wants a piece that survives a strap change and a service.

Mid grade replica

Mid tier versions usually get the diameter right and the depth wrong. Expect a case a millimetre or two thicker, a Miyota 9015 or a generic Chinese automatic, a slightly heavy date font, and a crystal with weak or missing anti reflective coating.

Pros

  • Noticeably cheaper while still looking correct across a table.
  • Miyota 9015 movements are reliable and easy to replace.
  • A low risk way to test whether the 40 mm Mark XVIII size suits your wrist.

Cons

  • Date position and font are often off by a fraction, which is visible in a photograph.
  • Lume is faint and fades within an hour.
  • Crown action feels gritty, and water resistance is a claim rather than a promise.
  • Crystal reflects light with a blue or purple tint.

Best for a second watch, a travel beater, or a first purchase before committing to a top tier build.

Budget quartz and entry automatic copies

The cheapest tier is sold as an IW3270 but rarely matches it. Cases are commonly 42 mm or larger and noticeably deep, glass is mineral, dial print is thick, and a quartz movement gives a ticking seconds hand.

Pros

  • Lowest entry cost and low financial risk.
  • Quartz keeps time without winding or setting.

Cons

  • The ticking hand is the single fastest way to be spotted.
  • Wrong case size and thickness change how the watch wears entirely.
  • Dial text is often misspelled or unevenly spaced.

Best avoided unless the watch is for a costume or a display shelf.

Spotting a fake IW3270 on the wrist or in a photo

  1. Check the case back. The engraving of the Ju 52 should be crisp with clear wing and engine detail, not a soft outline.
  2. Measure the case. Anything past 40 mm or thicker than roughly 11 mm is not built to the Mark XVIII pattern.
  3. Look at the date window. A black dial should carry a black date disc with white numerals.
  4. Study the numerals. Original numerals are printed flat and wide, with even gaps between them.
  5. Angle the crystal under a lamp. Heavy reflection or a colour tint means the coating is wrong or absent.
  6. Weigh it in hand. A hollow case and a tinny rotor sound point to a cheap movement.

Which version to choose

For daily wear and a convincing profile, take the high grade build with the Sellita based movement and confirm the thickness before you pay. For a test run or a backup watch, the mid tier automatic is the sensible middle. For anything photographic or long term, skip the quartz tier and put the money toward a better case instead.