Quick answer
The replica IW329104 is a copy of the IWC Pilot's Watch Mark XVIII Edition "Le Petit Prince" (ref. IW329104). The original uses a 40 mm steel case, a blue sunburst dial with white printed numerals, a date window at 3 o'clock, and the IWC caliber 35111. The best replicas match the case dimensions, dial color, and hand shape. They fall short on the movement finish, the crown threads, and the anti-reflective coating. Buy the version with a decorated automatic that accepts a 20 mm strap, not a quartz case with a fixed lug set.
Before you start
- Know your wrist size. The 40 mm case with 11 mm thickness wears large on wrists under 6.5 inches.
- Decide on strap or bracelet. The 20 mm lug width fits both, so either choice stays flexible.
- Set a budget band. Price tracks the movement and the dial printing, not the logo on the crown.
The reference in numbers
- Case: stainless steel, 40 mm diameter, 11 mm thick, 20 mm lugs
- Crystal: sapphire with anti-reflective coating on the inner face
- Dial: deep blue, sunburst finish, white luminescent numerals and hands
- Movement: IWC caliber 35111, Sellita SW300-1 base, 42-hour reserve, 28,800 vph
- Water resistance: 60 m, screw-down crown
- Magnetic protection: soft-iron inner case
Any replica that lists a 42 mm case or a 22 mm lug width is copying a different reference. Use the numbers above as a filter.
Replica tiers for the IW329104
- Entry tier: printed dial with flat blue, mineral glass, stamped case back, quartz or basic 21-jewel automatic, 38 to 40 mm case that reads thick on the wrist.
- Mid tier: sunburst blue dial, sapphire glass, correct 40 mm case, Asian automatic with a decorated rotor, date font close to the original.
- High tier: sunburst dial with correct grain, sapphire with inner AR, clone movement with engraved bridges, correct crown profile, soft-iron ring, bracelet or strap that fits original spring bars.
How to inspect a replica IW329104
- Measure the case across the bezel at 2 and 8 o'clock. It should read 40 mm, not 42.
- Check the thickness with calipers. Anything above 12 mm sits wrong under a cuff.
- Tilt the dial toward a window. A true sunburst shifts from navy to near-black; a painted dial stays one flat shade.
- Read the date window. The original uses a black date wheel with white print and no frame.
- Inspect the printed numerals under a loupe. Look for bleed at the edges of the 12 and the 6.
- Wind the crown ten turns and listen. Grit or a light click means the keyless works need service.
- Press the crown in and turn the date forward past midnight. The change should snap, not drift.
- Check the case back engraving depth. Shallow laser etching is the most common budget tell.
- Fit a 20 mm strap to the lugs. Tight spring bars or a gap at the lug holes signal a wrong case.
Common flaws to expect
- Dial blue that leans purple under indoor light
- Hands that are too wide or too short against the minute track
- Rotor that spins with a rattle and winds in one direction only
- Crown that threads in two turns instead of four
- Case back with the wrong reference stamp or a missing serial block
- Lume that charges fast and fades within an hour
Care and wear notes
Keep the watch away from hot water even if it is rated to 60 m. Have the gaskets checked once a year. Service the automatic every three to four years, or sooner if the power reserve drops under 30 hours. Store it crown up to reduce rate drift between wears. A leather strap will outlast the original if you rotate it and avoid sweat exposure.