The best cheap replica IW371424 for most buyers is the roughly 41 mm stainless steel bi-compax build with a Valjoux 7750-derived automatic movement, a properly silvered dial, and a sapphire crystal. It wins on four criteria that decide quality at this price: dial architecture, movement type, case and crystal finishing, and strap and clasp construction. Everything else, including the engraving on the rotor, is noise. Sort listings against those four points instead of trusting a seller's glamour shots.
1. Dial Architecture and Subdial Position
The Portugieser Chronograph look rests on a bi-compax layout: chronograph minutes high on the dial, running seconds low, feuille hands, applied numerals, and a printed railway minute track. A cheap replica that shifts the subdials inward, thins the numerals, or drops the track fails at arm's length. Pull a genuine reference image, match the angle, and compare the gap between the subdials and the case edge. That spacing is the fastest tell you have.
- Pros: correct subdial placement makes an inexpensive watch read as a proper dress chronograph; the layout is common enough that decent dials exist at low prices.
- Cons: printed tracks and applied markers are the first cost cuts; a wrong numeral font cannot be corrected later.
Best for: buyers who want the recognisable silhouette on a leather strap and will wear it under a shirt cuff.
2. Movement: 7750 Derivative, Generic Automatic, or Quartz
Three tiers exist in the cheap replica market. A 7750-derived automatic chronograph, a generic low-grade automatic, and a quartz watch with decorative chronograph hands. The 7750 family is a proven cam-actuated design that is widely serviced, but replicas of it vary enormously in finish and regulation. Quartz keeps the case slim and the price low, and it will keep time, though the second hand tick gives it away instantly to anyone who knows.
- Pros: a 7750-derived automatic gives real chronograph function, pusher feel, and a serviceable parts path; quartz gives reliable timekeeping and a slimmer profile.
- Cons: automatics add thickness and rotor wobble; a service can cost more than the watch did; quartz loses the sweep and the mechanical appeal.
Best for: dress and desk wear on the automatic; a casual daily beater on quartz if you accept the ticking seconds.
3. Case, Crystal and Finishing
Check the case shape before the polish. Genuine references have a slim bezel, straight lugs, and a mix of brushed flanks with polished edges. Compare the listed diameter and thickness to IWC's published numbers for the reference, then ask the seller for a caliper photo. On the crystal, sapphire with anti-reflective coating sits at the top of the cheap tier; mineral glass scratches and shows reflections.
- Pros: a correct case profile and coated sapphire carry most of the visual weight; both are achievable at modest cost.
- Cons: oversized or overly thick cases are common; uncoated glass makes the dial look flat; crown and pusher shapes are often wrong.
Best for: anyone who handles the watch often and will notice edges and reflections.
4. Strap, Clasp and Wearability
Bottom-tier builds ship with stiff, plastic-feeling leather and a stamped buckle. That is not a dealbreaker, because straps are cheap to replace, but it changes how the watch wears on day one.
- Pros: an aftermarket strap upgrades the look more than any case polish; lug width is easy to match.
- Cons: painted edges crack, buckles feel light, and incorrect spring bar fitment causes rattles.
Best for: buyers willing to budget one strap swap into the purchase.
Parameters to Confirm Before You Pay
- Case diameter and thickness, measured, not quoted.
- Movement identification plus a photo through any display back.
- Crystal material and whether it is anti-reflective coated.
- Chronograph test: start, stop, reset, and confirm the minutes counter advances.
- Subdial alignment after a full reset.
- Lug width, so you can price a replacement strap.
- Water resistance claim. Treat anything beyond splash resistance as unverified on a replica.
Pitfalls That Waste Money
- Stock photos of a genuine watch used to sell a replica. Ask for dated, in-hand images.
- Listings that show only the dial and hide the caseback and movement.
- Sellers who quote a reference number but ship a different dial colour or hand finish.
- No stated return window, or a return policy that excludes watches.
- Claims of Swiss or German assembly on a watch with no movement photo.
Which Build Fits Your Use Case
For office and formal wear, take the 7750-derived automatic with a silvered dial and coated sapphire, then add a decent leather strap. For travel and rough daily use, the quartz version in steel with mineral glass costs less to replace and never needs winding. For a first replica purchase, the mid tier with a correct dial layout and sapphire beats the cheapest listing every time, because the dial is the part you cannot fix.