A fake IW371483 usually gives itself away at the dial printing, the subdial spacing, and the caseback engraving. On a genuine IWC Portugieser Chronograph, the printed brand text is razor sharp under magnification, the two subdials sit on a true vertical axis at 12 and 6 o'clock, and the caseback reference and serial numbers are cut at even depth instead of stamped or laser-etched in shallow gray.
Which Watch Is the IW371483?
The IW371483 is an IWC Portugieser Chronograph reference. IWC splits its reference format in two: IW3714 identifies the Portugieser Chronograph family, and the remaining digits identify the exact dial, case, and strap combination.
Because the 3714 family has been in production for decades, the same core design appears across dozens of variants. Counterfeiters target the entire group, not just this one number.
How Do You Spot a Fake IW371483?
Start at the dial under a loupe, then work outward to the case, crown, and caseback. Cheap copies fail in seconds, while higher-end copies need a movement and engraving check to expose.
1. Case Size and Profile
A genuine Portugieser Chronograph case measures roughly 41 mm across and about 13 mm thick, with a slim bezel and long lugs. Copies commonly run 42 mm or larger and sit visibly thicker on the wrist.
Run a fingertip along the lug edges. Genuine IWC finishing alternates brushed and polished surfaces with a sharp transition line, while most fakes blur the break between the two.
2. Dial Printing and Subdial Spacing
The brand logo and the Schaffhausen wordmark should be crisp enough to read at arm's length. Fuzzy edges, uneven letter spacing, or paint that fills the counters of letters point to a fake.
Both subdials must sit on a true vertical axis at 12 and 6 o'clock, centered beneath the hour markers. Off-center totalizers, a date window that cuts into the minute track, or a misaligned inner track are common tells.
3. Hands and Crystal
Genuine feuille hands have a soft leaf taper and a polished or blued finish that catches light along the full length. Fakes often use flat stamped hands with blunt tips.
Genuine sapphire crystal carries an anti-reflective coating that makes the dial look nearly invisible from most angles. A milky reflection or a faint rainbow haze usually means mineral glass or uncoated sapphire.
4. Movement and Caseback
Depending on the production year, the movement is a modified Valjoux 7750 base or an in-house IWC chronograph calibre. Both show deep, evenly cut engraving on the rotor and bridges, correct spelling, and clean striping or graining on the plates.
Caseback engraving is the fastest check. Genuine reference numbers, serial numbers, and Probus Scafusia text are cut with uniform depth, while fake markings look stamped, shallow, or gray.
5. Crown, Pushers, and Strap
A genuine crown is signed on the flat end and turns with light, precise resistance. The chronograph pushers should have short, clean travel and reset to zero with one firm push.
Straps are alligator or Santoni leather with a signed pin buckle or deployant clasp. Generic leather and unbranded hardware are red flags on any watch sold as genuine.
Why Are There So Many Fake IW371483 Watches?
The Portugieser Chronograph is a clean, classic design that is easy to copy at the case and dial level. Demand stays high and the price gap between genuine and counterfeit is wide, which keeps counterfeiters in business.
How Much Should a Genuine IW371483 Cost?
New from an authorized dealer, a Portugieser Chronograph sells for well under $10,000, and pre-owned examples often trade in the mid four figures. A price far below market, especially with no box or papers, is the single most reliable warning sign.
Legit Check Checklist Before You Buy
- Ask for macro photos of the dial text, subdials, and caseback engraving.
- Confirm the reference number matches the caseback, warranty card, and box label.
- Request a timegrapher reading and a photo of the movement through the caseback.
- Buy from a seller with a return policy, and pay with a method that allows a chargeback.
- Budget for a service quote, since a full movement service on a counterfeit is often impossible.
Are 1:1 Super Clone IW371483 Watches Hard to Spot?
High-end replicas can match the case silhouette and dial layout closely in photos. They still fall short on engraving depth, movement construction, and long-term reliability, and they carry no manufacturer warranty or parts support.
If you buy a replica knowingly, treat it as a cosmetic piece rather than a collectible, and expect service options to be limited.