The Short Answer
A replica IW323797 is worth buying only if the seller can name the factory, supply daylight photographs and a movement video, and accept a return. The reference sits in the integrated-bracelet Ingenieur family, where the case profile, bracelet end links, and bezel screws carry the whole look. Any replica that gets those three things wrong will read as fake from arm's length, no matter how good the dial is. Inspect the geometry first, the finishing second, and the movement last.
Prerequisites
- Digital caliper with 0.01 mm resolution
- 10x jeweler's loupe
- Official spec sheet for reference IW323797 from the manufacturer
- High-resolution photos of the genuine watch from several angles
- Timing app or timegrapher
- Spring bar tool and bracelet link tool
Step-by-Step Inspection
- Pull the official specification for IW323797 from the manufacturer's product page and write down every listed dimension, material, and movement detail.
- Build a reference folder of genuine photos covering the dial, case flank, bracelet side profile, case back, and clasp.
- Ask the seller to name the exact factory and version number of the replica before you send payment.
- Request daylight photos of the front, both case flanks, the case back, and the clasp, plus a ten-second video showing the seconds hand sweep and the date change.
- Measure the case diameter, thickness, and lug-to-lug span with the caliper and compare each number to the official spec.
- Count the bezel screws and check that the spacing between them matches the genuine layout.
- Run a fingernail along the gap between the bracelet end link and the case to feel for play or a visible seam.
- Study the dial at 10x magnification for print edges, index alignment, and lume that sits level inside its frame.
- Compare the date window position and numeral font against your reference photos.
- Wind the crown and note the resistance, then check that the stem sits flush when the crown is pushed home.
- Time the watch over 24 hours on a wrist or timegrapher and record the daily rate.
- Inspect the case back engraving for font weight, depth, and the exact reference number sequence.
- Work the clasp through ten open and close cycles and listen for a defined click at each position.
- Size the bracelet with the correct tool, then wear the watch for a full day before removing the protective film.
Flaws Worth Rejecting
- Case thickness more than half a millimeter off spec, which throws off the bracelet angle
- Bezel screws that are glued in place or set at random angles
- End links that rock against the case when you flex your wrist
- Dial texture that looks stamped flat under a loupe
- Date numerals printed in the wrong typeface or off center in the window
- A crown that grinds or a winding feel with no lubrication
- Case back text with blurred or uneven lettering
Water Resistance and Movement Claims
Treat any water resistance figure quoted by a replica seller as a marketing line. Gaskets on replica cases are rarely tested, so keep the watch away from pools, showers, and salt water. Movement descriptions also drift, since factories swap suppliers between batches. Ask for the movement name in writing and confirm it matches what the photos show.
After the Watch Arrives
Check the parcel within the return window. Set the time, wear it for three days, and log the rate. If the watch loses or gains more than about fifteen seconds a day, ask for a regulation or a refund. Store the spare links and the tool in the box so the bracelet can be restored if you sell the watch later.