The best replica IW371740 for most buyers is the 42mm steel build with an Asian 7750 movement, a sapphire crystal, and a leather strap. It costs about $250 to $450 and copies the subdial layout of the real IWC Pilot's Chronograph 3717, with counters at 12, 6, and 9. This replica IW371740 review compares that pick against the quartz, Swiss-movement, and slim versions you will see from most sellers.
Why the Asian 7750 Version Wins
The genuine IW3717 runs on the IWC 79320 caliber, which is a modified Valjoux 7750. That matters for replicas because the 7750 family already places its subdials at 12, 6, and 9, so a clone movement gives the correct dial without extra work.
- Case width: 42mm, with a thickness near 14.5mm.
- Lug width: about 21mm, so aftermarket straps fit.
- Subdials: 30-minute counter at 12, 12-hour counter at 6, running seconds at 9.
- Date: at 3 o'clock on a white disc with black print.
- Crystal: sapphire with anti-reflective coating on the inner face.
- Beat rate: 28,800 vibrations per hour, so the seconds hand sweeps.
A quartz copy ticks once per second. That single detail is the fastest tell on a wrist, which is why the mechanical build is worth the extra money.
Replica IW371740 Options Compared
Quartz version: $60 to $120
The dial is printed rather than applied, and the hands look flat under direct light. It works as a costume piece and nothing more.
Best Replica IW371740 Review: Top Picks & Comparison
Asian 7750: $250 to $450 (top pick)
Applied numerals, a smooth sweep, and a chronograph that starts and resets with a firm click. Case finishing is brushed on the sides and polished on the bezel edge, which matches the original shape. This is the version that holds up to a close look.
Swiss ETA 7750: $550 to $900
Better timekeeping and a quieter rotor. The case and dial come from the same suppliers as the Asian build in most cases, so you pay for the movement alone. Worth it if you plan to wear the watch daily.
Slim or decorated automatics: price varies
Some sellers list a thinner automatic with a closed caseback. These builds often drop the chronograph or move the date window to a wrong spot. Ask for photos of the dial and the pushers before you buy.
What to Check Before You Pay
- Ask for a video of the chronograph running and resetting to zero.
- Confirm the case measures 42mm across, not 40mm or 44mm.
- Check that the crown screws down with no grit and sets the date in one position.
- Look at the crystal. A blue or purple glare means heavy coating on the outside, which scratches.
- Confirm the lug width so you can swap straps later.
- Ask which strap ships in the box. Most come with brown calf leather and a stamped buckle.
Dial, Case, and Strap Details
The 3717 dial is matte black with applied steel numerals and white lume on the hands and markers. Good replicas keep the chapter ring thin and the text sharp. Weak ones print the numerals and leave a wide gap near the rehaut.
Case sides are brushed, the bezel and lugs are polished, and the crown sits between two pushers at 3 o'clock. Check that the pushers sit level with the case and do not stick out past the edge.
The standard strap is brown calf leather with white stitching and a steel tang buckle. IWC also offered a steel bracelet on some versions, and replica bracelets vary a lot in feel. A leather strap hides more flaws.
Replica vs Genuine IW371740
At arm's length the two watches look close. Under a loupe the differences show up in the printed text, the date font, and the polish on the caseback engraving. The real watch also uses a soft-iron inner case for magnetic protection, and most replicas skip that part.
The genuine crystal carries a double anti-reflective coating, so the dial reads through it with almost no reflection. Most replicas coat the inner face only, which leaves a visible sheen at some angles.
How to Spot a Bad Listing
- Stock photos only, with no real images of the watch in hand.
- No movement name, or vague wording such as high grade automatic.
- Case size listed as 40mm or 44mm instead of 42mm.
- Price under $100 with a working chronograph claim.
- No answer when you ask where the subdials sit.
A seller who sends a short video of the chronograph running answers most of your questions in ten seconds.
Wear, Care, and Practical Notes
These are novelty watches, not genuine IWC products, and they carry no manufacturer warranty or service network. Rules on selling and importing them differ by state and country, so check your local rules before you order. Keep the watch away from strong magnets and have it serviced every three to five years.
Replica IW371740 FAQ
How much should a good replica IW371740 cost?
Between $250 and $450 for the 7750 build. Below $150 you get quartz or a low-grade automatic. Above $600 you are paying for a Swiss movement, not a better case.
Does the replica IW371740 have a working chronograph?
The 7750 versions do, and so do the quartz versions, though those tick. The cheapest automatics sometimes ship with pushers that do nothing.
Can a watchmaker service it?
Yes. The Asian 7750 is a clone of the Valjoux 7750, so parts and tools are common. A clean and oil runs about $80 to $150 at a local shop.
What wrist size suits a 42mm IW371740 replica?
It wears large. A 7 inch wrist or bigger carries it well, and a 6.5 inch wrist can still pull it off on a leather strap because the lugs curve down.
Bottom Line
Buy the Asian 7750 build in steel with sapphire and a leather strap. It gives you the correct dial layout, the right case size, and a movement any repair shop can service. Skip quartz unless you want a cheap costume piece and nothing more.