Short answer

A replica IW328011 is a copy of an IWC watch from the 3280 reference block. Prices run from about $280 to $520. Three things decide quality: the movement, the case dimensions, and the dial print. Ask for caliper photos of the case, a photo of the running movement, and a dial macro at 3x zoom. A seller who will not send them is a seller to skip.

Start with the genuine spec sheet

IWC lists the reference on iwc.com. Pull four numbers from that page: case diameter, case thickness, lug width, and water resistance. Write them down before you look at any copy. A case that measures more than 0.5 mm off on thickness is a different case, not a tolerance issue. IWC shares one case across several dial variants in this block, so dial color changes but the measurements do not.

Movement tiers

  • Miyota 9015 (Japan): 28,800 vph, 42-hour reserve. Adds about $80 to the price.
  • Sea-Gull ST2130 (China): ETA 2824 clone, 28,800 vph, 38 to 40 hours. Cheap to service.
  • Asia ETA 2824 or 2892 clone: 28,800 vph. Some sellers put a 21,600 vph movement in the case and label it as this. Check the balance.

Ask for a short video of the balance wheel with the watch running. A 28,800 vph movement beats 8 times per second. A 21,600 vph movement beats 6 times per second and the second hand looks slower.

Case and finish

Check the lug profile, the crown guards, and the brushing direction. Good copies brush the top surfaces and polish the flanks. Weak copies polish the whole case. Then read the case back: reference number, serial, and logo. Font weight and spacing on the engraving are the fastest giveaways on a replica IW328011.

Dial, hands, crystal

Dial print is the second giveaway. Look at marker edges, the date window cut, and lume color. Genuine lume reads off-white. Cheap copies use bright white or a green tint. The crystal should be sapphire with anti-reflective coating. Hold the watch at 45 degrees under a lamp. Coating on one side gives a strong blue or purple haze. Coating on both sides gives a faint tint and a clearer dial.

Water resistance

Factories fit gaskets but do not pressure test each case. A 100 m rating on a listing is a claim, not a result. Do not swim with the watch until a local watchmaker pressure tests it. That runs $30 to $50.

Price bands

$280 to $350 buys a Miyota or Sea-Gull movement, 316L steel, and basic finishing. $350 to $450 buys better case work and coated sapphire. $450 to $550 buys a decorated movement and the closest dial print. One reference can sell at three prices from three sellers for the same factory output, so compare photos, not price tags.

Red flags

  • Catalog photos instead of photos of the unit you will receive.
  • Under $200 for an automatic with a decorated rotor.
  • "Swiss made" claims on a $300 watch. A Swiss ETA movement alone costs more than the whole watch.
  • No return window. Ask for 7 days.

Servicing and law

Copies ship with thin lubrication. Budget $60 to $120 for a clean and oil if the watch gains more than 15 seconds per day. In the United States, US Customs can seize a counterfeit watch at import, and selling one as genuine is a federal offense.