Short answer
A replica IW329026 copies the IWC Aquatimer Automatic 42 mm diver. Good copies use a 42 mm steel case, a working internal rotating bezel, a Miyota 9015 or Sellita SW200-based movement, and sapphire crystal. None of them carry the real 300 m water rating. Expect to pay $280 to $550 for the better grades and check five things before buying: case diameter, bezel click, movement type, crown thread, and bracelet fit.
What the original reference is
IW329026 belongs to the IWC Aquatimer Automatic 42 line. The genuine watch has a 42 mm stainless steel case, an internal rotating dive bezel driven by a second crown at 2 o'clock, and a screw-down crown at 4 o'clock. IWC lists the movement as calibre 32111 with a 120-hour power reserve and a 300 m water resistance rating under ISO 6425 dive watch rules. Confirm the exact dial color and bracelet code on IWC's own reference lookup before you compare a replica against photos.
What replica versions exist
- Entry tier ($120 to $200): 41 to 43 mm alloy or low-grade steel case, quartz or basic automatic, printed dial, mineral glass.
- Mid tier ($250 to $380): 42 mm 316L steel, Miyota 9015, sapphire, working inner bezel with soft clicks.
- Top tier ($400 to $600): cloned or Swiss-supplied automatic, closer case profile, better lume, bracelet with solid end links.
Five checks to run
- Diameter and thickness. Ask for caliper photos. A true 42 mm case should measure 41.8 to 42.2 mm across the bezel, not including crowns.
- Inner bezel action. The 2 o'clock crown should turn the chapter ring in defined steps and hold position. Rattling or free-spinning means a cheap mechanism.
- Movement. Ask for the model name. Miyota 9015 beats at 28,800 vph. A 21,600 vph movement in a watch sold as a top tier copy is a mismatch.
- Crown threads. Unscrew and reseat the crown ten times. Gritty threads fail early and are the most common defect on dive watch replicas.
- Bracelet and lug fit. End links should sit flush with no gap at the lug. Ask for a side-profile photo with the bracelet fitted.
Water resistance reality
Replica cases are not pressure tested. A seller who claims 300 m on a $300 copy is describing the original, not the item shipped. Treat any replica as splash resistant only. Do not swim with it, and have a watchmaker pressure test the case before any contact with water.
Questions worth asking a seller
- Which movement is installed, and what is its beat rate?
- Is the crystal sapphire or mineral?
- Are the photos of the actual unit or a stock image?
- What is the return window, and who pays return shipping?
- Is the case back engraved with the reference number and serial style used by IWC?
Unknown details should be confirmed in writing before payment. A seller who cannot answer the movement question is not a source for a watch in this price range.