The IW323723 is a reference in the IWC Ingenieur Automatic family. Replica copies of it sell in three build tiers: quartz, Chinese automatic, and Swiss-movement builds. Price tracks the movement, the case finishing, and the bracelet. IWC's current catalog does not list IW323723, so treat it as a discontinued reference and confirm the model on iwc.com before you buy anything.

What the reference is

Ingenieur Automatic, stainless steel case, about 40 mm across, integrated steel bracelet, date window at 3 o'clock. The movement family is IWC caliber 30110, which uses an ETA 2892-A2 base: 28,800 vibrations per hour, roughly 42 hours of power reserve, automatic winding. The Ingenieur line has carried a soft-iron inner case for magnetic protection since 1955. IWC spec sheets for the 40 mm Ingenieur Automatic list 120 m of water resistance and a case thickness near 10 mm. Measure any copy yourself. Replica cases often run 1 mm to 2 mm thicker than the source.

Movement tiers in replicas

  • Quartz: about $80 to $150. The seconds hand ticks once per second. No sweep.
  • Chinese automatic: about $200 to $450. Seagull ST2130 or Hangzhou 6300 types, both copies of the ETA 2824 layout. Beat rate 28,800 vph, power reserve 38 to 40 hours.
  • Swiss or Swiss-parts: about $500 to $900. ETA 2892-A2 or Sellita SW300. Beat rate 28,800 vph, power reserve near 42 hours. This matches the original 30110 architecture, including the position of the winding rotor and the date-change point.

The movement decides the case thickness, the sweep of the seconds hand, and the service options later. Ask for a movement photo before you ask for a dial photo.

Case and dial tells

  • Case back engraving: font weight, text depth, and the reference number stamping.
  • Dial printing: spacing of "INGENIEUR" and "AUTOMATIC", marker height above the dial, lume fill at the marker edges.
  • Date wheel: numeral font and vertical alignment in the window.
  • Hands: bevels on the baton hands, length against the minute track.
  • Case profile: side chamfers and the transition into the bracelet end links.

Bracelet and clasp

The Ingenieur Automatic uses an integrated bracelet, so the end links sit flush against the case. A gap of half a millimeter shows from arm's length. Check link construction (screws or pins), clasp engraving, and the number of micro-adjust holes. Count the links against the source watch.

Verification checklist

  1. Movement photo: balance wheel, rotor engraving, jewel count.
  2. Caliper photos of case diameter and thickness.
  3. Timegrapher photo: 28,800 vph, rate inside plus or minus 10 seconds per day, beat error under 1.0 ms.
  4. Serial and reference numbers on the case back, matched to the model.
  5. Bracelet link count and end-link fit photos.

Price bands and limits

Below $80, expect a quartz movement and a stamped clasp. From $200 to $450 you get an automatic movement and a solid bracelet. From $500 to $900 you get a Swiss or Swiss-equivalent movement and better case finishing. Above that range you pay for part swapping, not for a different watch. No replica carries the original soft-iron magnetic shield, and no replica is authorized by IWC Schaffhausen. Resale value on a replica is close to zero.