Quick answer

A replica IW323705 is a copy of an IWC Ingenieur reference. Prices run from about $180 to $450. The points that separate a good copy from a poor one are case diameter, bezel screw alignment, dial print, date font, and the movement inside. Ask for a photo of the movement and the caseback before you pay.

Reference basics

IWC uses the IW3237xx block for Ingenieur Automatic models. Genuine watches in this block measure about 40 mm to 46 mm across, depending on the generation, and use stainless steel cases with an integrated bracelet. IWC lists 120 m water resistance for most Ingenieur Automatic references. Confirm the exact diameter and dial color with the seller. The reference number on its own does not fix the dial variant.

Movements used in replica IW323705 watches

  • Asian 2824 clone, 25 jewels, 28,800 vph, about 38 h power reserve. Common in the $180 to $250 band.
  • Asian 2892 clone, 21 jewels, 28,800 vph, about 42 h power reserve. Thinner, so the case profile sits closer to the genuine watch.
  • Decorated automatic with an IWC-style rotor engraving. The engraving is cosmetic. It does not change the base caliber.

Genuine Ingenieur Automatic watches use IWC calibers such as the 30110, which is based on the ETA 2892-A2. No replica carries an IWC-made movement. If a listing claims one, treat that as a false claim.

Case, bezel, and bracelet

The Ingenieur bezel holds five screws. Check that all five sit at the same depth, that the slots point the same direction, and that no screw head stands proud of the bezel. On lower-grade replicas, one or two screws are decorative and do not unscrew. Bezel screws on genuine references are functional.

Bracelet links should move with no rattle. End links should meet the case with no visible gap. Case weight for a steel Ingenieur Automatic sits near 150 g to 190 g. A replica under 120 g points to a hollow bracelet or a smaller case.

Checks before payment

  1. Case diameter with calipers, in millimeters.
  2. Lug width and bracelet taper, in millimeters.
  3. Dial print under 10x magnification. Look at the IWC letters and the SCHAFFHAUSEN line.
  4. Date wheel font and window position. The date should center in the window.
  5. Crystal height above the bezel. A domed crystal that sits high is a common error.
  6. Timegrapher reading: rate, amplitude, beat error. Ask for a photo of the screen.
  7. Water resistance test result, if the seller runs one. Most do not.

Price bands

$180 to $250: Asian 2824 clone, mineral or low-grade sapphire, stamped clasp.
$250 to $350: Asian 2892 clone, sapphire with inner anti-reflective coating, solid end links.
$350 to $450: decorated movement, better dial print, screw bezel with functional screws.

What is not known

Factory names and version numbers change without notice. Two watches sold under the same reference label can come from different workshops. Ask for photos of the actual unit you will receive, not stock images.