Quick answer
IW329056 is an IWC reference in the Aquatimer Automatic family. Copies sell for $50 to $400. Price tracks four things: case diameter tolerance, movement, bezel mechanism, and the crystal. Ask the seller for the case size in millimeters, the movement name, and the return window before you send money.
What the reference number tells you
IWC reference numbers group by model block. The 3290 block covers the Aquatimer Automatic. Genuine examples use a 42 mm case, a steel or titanium shell, a rotating dive bezel, and an automatic movement with about 42 hours of power reserve. A diver in that block carries a 300 m water resistance rating.
If a listing calls IW329056 a Pilot's Watch, the listing is wrong. Cross check the number against IWC's own catalog or an authorized dealer before you treat any photo as a benchmark. I cannot confirm every dial variant IWC issued under this number.
Replica grades and prices
- Low, $50 to $120. Mineral glass, stamped caseback, quartz or a low grade automatic, a bezel that does not turn or turns with no detents. Case width off by 1 mm to 2 mm.
- Mid, $150 to $250. Sapphire crystal, Asian 2824 clone or Miyota 9015, working 60 click bezel, a 100 m claim with no test behind it.
- High, $280 to $400. Sellita SW200 or SW300, engraved caseback, case dimensions inside 0.5 mm, anti reflective coating on the crystal, bracelet with solid end links.
Checks when the watch arrives
- Measure the case with calipers. Target is 42 mm. 40 mm or 44 mm means a different case was used.
- Weigh the watch on a bracelet. A 42 mm steel diver lands near 180 g. Under 130 g points to a thin caseback or hollow links.
- Open the caseback. Read the rotor engraving and count the jewels. A 28,800 vph movement ticks 8 times per second.
- Turn the bezel through a full circle and count the stops. 60 clicks for 60 minutes.
- Charge the lume under a lamp for 30 seconds. Check the glow at 10 minutes.
- Check the date window at 12:00 for centering.
- Screw the crown down and count the turns. 2 to 3 turns before it seats.
Water resistance
ISO 22810 covers water resistance claims. A replica does not carry a valid test certificate. Gaskets on copies are the first part to fail, and a 300 m claim on a $200 watch has no lab report behind it. A local watchmaker can pressure test the case for $20 to $40. Skip the test and keep the watch out of water.
Movement and service
Sellita SW300-1 runs at 28,800 vph with 25 jewels and a 42 hour reserve. Asian 2824 clones share the layout, so a watchmaker can service either one. Expect $80 to $150 for a clean and oil, and ask about part availability before the work starts.
Shipping and customs
Shipping from most replica sellers runs $0 to $30 with 7 to 21 days in transit. Customs can hold or seize a parcel. Sellers replace seized orders in some cases and not in others. Read the policy text, not the marketing line.