The quick answer
An "IW329117 v3" is a replica of an IWC Pilot's Watch Automatic from the IW3291 reference block, and the "v3" is a factory revision label, not anything IWC ever engraved on a case. IWC's own reference numbers do not use version suffixes like that, so treat "v3" as a shorthand for "third batch from this maker." On a good example you want the case to land near 40mm across with roughly 10.5 to 11mm of height, a dial that reads clean at arm's length, a date window that lines up with the 3 o'clock index, and a movement that hacks and winds without grit. On a weak one the case is too thick, the printing sits heavy on the dial, and the lume fades to a dull green within minutes.
What the reference actually is
The IW3291 block covers IWC's modern Pilot's Watch Automatic line, the three-hand flieger with a soft-iron inner cage, a screw-down crown, and a sapphire crystal with anti-reflective coating on both faces. The last two digits of a reference like IW329117 usually encode dial color, strap pairing, or a market-specific variant. I would not take a seller's word on which variant that is. Ask them to send a photo of the dial, the caseback engraving, and the movement, and compare what you get against IWC's current spec sheet for the model they claim to be copying. If the answers drift, walk.
Case and proportions
This is where most replicas give themselves away, and where the v3 label usually earns its keep. Older batches ran thick and slab-sided, with a case that sat proud of the wrist. Look for:
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- Lug-to-lug close to the genuine, so the watch does not overhang a 6.5 inch wrist.
- Crisp lug bevels with no rounding from a抛光 wheel, and no soft edges where the case meets the bezel.
- A crown that screws down smoothly and sits flush with the case band, not proud of it.
- Consistent brushing on the case sides with a polish only where the original has polish.
- Caseback threads that engage in one clean turn instead of grinding for three.
Water resistance on a replica is a promise, not a spec. I treat every one as splash-only until a watchmaker has pressure-tested it. The genuine is rated to 6 bar, and that number means nothing on a copy until someone puts it on a tester.
Dial, hands, and lume
The dial is the cheapest place to cut and the easiest place to check. Print should be sharp under a loupe, with no fuzzy edges on the numerals and no ink bleed into the minute track. The date should sit centered in its aperture with even gaps on all four sides. Hands should be flat, not domed, with clean edges and lume that fills the frame without spilling over.
Lume is the honest test. Charge it under a lamp for thirty seconds and watch how it behaves. Good Super-LumiNova burns bright and fades slowly toward a pale green or blue. Cheap lume flares and dies in a couple of minutes, and it often looks chalky in daylight.
Movement and caseback
The genuine runs IWC calibre 35111, a Sellita-based automatic with about 42 hours of reserve. Replicas in this family usually carry a decorated clone of a similar architecture, sometimes an Asia 2892 derivative. What you can check without opening anything: does the seconds hand hack when you pull the crown, does the rotor spin freely without a metallic scrape, and does the watch hold time overnight? A rate of plus or minus 15 seconds a day is acceptable on a replica. Anything past 30 seconds, or a date that flips at 11pm, is a sign of a rough movement.
Caseback engraving should be deep and legible, not laser-etched shallow. Reference numbers, the soft-iron cage marking, and the water resistance line should all be present and correctly spelled. Misspellings are common and easy to spot in a photo.
Strap and hardware
A replica strap is almost always the first thing to replace. Judge the watch, not the leather. Check that the pin buckle is signed cleanly, that spring bars are thick and seat without rattle, and that the lug holes accept standard 20mm straps without reaming. A seller who ships a decent strap is usually a seller who cared about the rest.
The v3 question
Version labels are marketing as much as engineering. Ask directly what changed from v2 to v3 and see if the answer is specific: a thinner case, corrected dial print, a better crystal coating. Vague answers like "better quality" mean nothing. If the seller cannot describe the delta, the v3 label is probably a sticker on an older batch.
A short checklist before you pay
- Ask for a wrist shot, a macro of the dial, and a photo of the caseback.
- Confirm the case thickness and lug width in writing.
- Ask which movement is inside and whether it hacks.
- Request a short video of the seconds hand and the date flipping.
- Check the return policy and whether returns are accepted for defects, not just for change of mind.
- Pay with a method that gives you recourse.
Bottom line
A fake IW329117 v3 can be a solid daily wearer if the case proportions are right and the movement is honest. Spend your effort on the parts you can photograph and measure, and treat every claim about water resistance, movement origin, or "1:1" accuracy as unproven until the seller backs it with a clear photo or a return window.