Short answer
A replica IW328013 is a third-party copy of an IWC Pilot's Watch Mark reference. The genuine watch is a steel three-hand automatic with a date window and a black dial. Copies sell for about $80 to $600. Under $150 you get a plated case, mineral glass, and a rough movement. Over $350 you get the correct case profile, sapphire with coating on both faces, and a movement that hacks and hand-winds. No copy carries an IWC warranty. No copy uses a movement made by IWC.
IWC's Mark line cases measure 40mm across on most references, with a lug width near 20mm. Confirm the size, height, and water rating for IW328013 on IWC's product page before you compare a copy. Sellers reuse reference numbers across dial variants, and listings often carry the wrong number.
Three tiers and what each one buys
- Low tier, $60 to $120. Brass or alloy case with chrome plating. Mineral glass. Printed dial. Quartz or a low-grade automatic. Lume fades in under an hour. Crown threads strip after months of use.
- Mid tier, $150 to $300. 316L steel case. Sapphire crystal, sometimes with coating on the outside only. Applied markers. Miyota 9015 or a Chinese copy of the ETA 2824. Date font that is close but not correct.
- Top tier, $350 to $600. Case profile and bezel slope matched to the genuine. Double-sided anti-reflective sapphire. Correct date wheel font and window position. Clone movement with the right beat rate. Bracelet end links that sit flush against the case.
Case and dial checks
Measure the case with calipers if you can. A 41mm copy sold as 40mm will wear wrong on a 6.5 inch wrist. Check the lug holes. On the genuine, the spring bar sits in a drilled hole with a clean edge. On a cheap copy the hole is a slot.
Look at the dial under a loupe. The minute track should be crisp, not blurry at the edges. The date window should sit on the same line as the marker at 3 o'clock. Lume should read pale cream, not yellow-green. A green tint signals a low-grade paint, not the genuine compound.
Run a fingertip over the crystal edge. A domed sapphire that sits proud of the bezel by more than a hair is a sign of a generic case, not a matched one.
Movement options
Most mid-tier copies use the Miyota 9015. It runs at 28,800 beats per hour with about 42 hours of reserve, and it hacks. The ETA 2824 and its copies run at the same rate with about 38 hours. The genuine reference family has used Sellita-based calibers and, on later Mark XX models, a caliber with a 120 hour reserve. Ask the seller which movement is in the watch and ask for a photo of the rotor and balance. A stated reserve of 120 hours on a $200 copy is false.
Water resistance
Genuine Mark XVIII references carry a 6 bar rating. Copies often have no gasket testing at all. Do not swim with a replica until a watchmaker pressure-tests it. A $40 test is cheaper than a flooded dial.
Before you pay
- Ask for photos of the actual watch, not catalog renders. Request a shot of the caseback and the clasp.
- Ask for a short video with the seconds hand running and the date flipping.
- Confirm the movement name and the beat rate.
- Confirm the return window in writing. Seven days is common. Zero days is a warning.
- Pay by a method with a dispute process. Bank transfer leaves you with no recourse.
Where copies fall short
Case brushing on a copy is coarser than the genuine. Lume output is lower and fades faster. The movement is undecorated under the caseback. Resale value is close to zero. Service means a new movement, not a repair, because parts for clone calibers are not stocked by independent watchmakers. The genuine watch holds value and can be serviced for decades. A copy cannot.
IWC does not publish production totals for individual references, so the number of genuine IW328013 watches in circulation is not public. Treat any claim about rarity with doubt.