The replica IW938720 is an aftermarket copy of an IWC-style chronograph, built by third-party workshops and sold under a reference code that has no connection to IWC Schaffhausen. Before you order, confirm five things: case diameter, movement type, crystal material, dial finish, and stated water resistance. Those five details decide whether the watch feels solid on the wrist or fails within a month.
What the Reference Number Tells You
Factory codes like IW938720 are seller labels, not official IWC references. Two sellers can use the same code for two different builds, so the code alone proves nothing about quality. Treat it as an order number and verify the listed physical specs against the photos you are sent.
Specs That Separate a Solid Build From a Weak One
- Case diameter and thickness: a gap of more than 0.5 mm from the stated size is a red flag.
- Movement: automatic calibers with a Japanese or Swiss base hold time better than unbranded quartz.
- Crystal: double-domed sapphire with anti-reflective coating resists scratching. Mineral glass does not.
- Dial: applied indices, crisp printing, and a date wheel that centers in the window.
- Strap: leather with stitched edges and a signed buckle, or a bracelet with tight end-link fit.
How to Evaluate a Replica IW938720
- Confirm the listing reference number matches the photos you were sent.
- Ask the seller for the exact case diameter and thickness in millimeters.
- Request the movement name, base caliber, and beat rate.
- Ask which crystal is fitted and whether it carries an anti-reflective coating.
- Request close-up photos of dial printing, index alignment, and the date window.
- Check the case-back engraving for depth, font, and spelling.
- Confirm the water resistance rating and whether the case back uses a gasket.
- Ask about the return window and warranty before you pay.
Water Resistance and Daily Care
Most replicas rated 3 ATM handle splashes only. Keep the crown pushed in, avoid hot water and soap, and never press the chronograph pushers underwater. Have the gaskets checked once a year if you wear the watch near moisture. An automatic movement should be serviced every three to five years, though many owners run replicas until they stop.
Legal and Practical Notes
Replica watches are counterfeit goods. They are not affiliated with, authorized by, or produced by IWC Schaffhausen. US Customs and Border Protection can seize counterfeit imports, and selling a replica as genuine is trademark infringement and fraud. If you resell, disclose that the watch is a replica.