Short answer
A replica IW328057 is a third-party copy of an IWC watch built on that reference number. Replicas of this reference fall into three tiers: under $100 builds with plated cases and quartz or low-grade automatic movements, $150 to $300 builds with reliable automatic movements and passable dial printing, and $350 and up builds that copy case geometry and movement architecture. Confirm the reference exists in the genuine catalog, request macro photos of the dial and caseback, and get the movement type in writing before you pay. A copy worth wearing usually runs $250 to $500.
What separates a good copy from a bad one
Case finishing does most of the work. Look at the transition between brushed and polished surfaces on the lugs: sharp, straight lines mean a machined case, blurred edges mean a cast or plated one. Dial printing is the second tell. Text should sit crisp and level under magnification, with no ink bleed at the edges of the letters. Crown action matters too. A correct copy screws down smooth and seats flush, without grit or a visible gap against the case.
Anything with a quartz movement, a mineral crystal, or a case that measures off by more than half a millimeter from the genuine spec is not worth your money, regardless of the photos.
How to vet a replica IW328057
- Pull the genuine specification sheet for the reference from IWC and note case diameter, thickness, lug width, crystal type, and water resistance.
- Ask the seller for the measured case diameter and thickness in millimeters, not the advertised numbers.
- Request ten to fifteen macro photos: dial straight on, date window, crown side, caseback engraving, clasp, and bracelet end links.
- Compare the dial photo against the genuine product image at the same angle and check the font weight on the logo and the minute track spacing.
- Ask which movement is inside and whether it is a clone of the original calibre or a substitute.
- Confirm the crystal material in writing and refuse anything that is not sapphire.
- Ask for a short video of the seconds hand sweeping and the date flipping, filmed at the case side.
- Check the seller's return window and whether they accept a return for a movement fault.
- Pay with a method that allows a chargeback, and keep the listing screenshots.
Price tiers at a glance
- Under $100: plated case, quartz or unbranded automatic, printed dial markers with poor lume.
- $150 to $300: solid steel case, entry automatic movement, decent printing, mineral or basic sapphire crystal.
- $350 and up: cloned movement, correct case proportions, applied markers, sapphire with anti-reflective coating.
Red flags
- Stock photos only, with no images of the actual watch on hand.
- Claims of "1:1" quality with no measurement data.
- Weight listed far below the genuine figure for the same case material.
- Pressure to pay outside a tracked checkout.
- No answer when you ask for the movement name.
After it arrives
Check the watch against the photos you approved, wind it fully, and set the date through a full cycle before you wear it. Time it over 24 hours against a reference clock. A healthy automatic should hold within about ten seconds a day. Keep the watch away from steam and hot water, and have the gaskets checked once a year if you swim in it.
Note that importing counterfeit goods is restricted in most countries and shipments can be seized. Treat the purchase as a personal risk you accept, not a transaction with a guarantee.