Answer
A replica IW371416 is a copy of the IWC Portugieser Chronograph reference IW371416. The genuine watch has a 40.9 mm stainless steel case, a silver-plated dial, gold appliqués, and a Caliber 79350 chronograph movement. Replica quality varies. Check case thickness, dial print, subdial spacing, and movement before purchase.
Genuine IW371416 specs
Use these numbers as a baseline.
- Case: stainless steel, 40.9 mm diameter, 12.3 mm height
- Movement: IWC Caliber 79350, automatic, 28,800 vph, 31 jewels, 44-hour power reserve
- Functions: hours, minutes, small seconds, chronograph, date
- Dial: silver-plated, gold appliqués, feuille hands
- Crystal: sapphire, antireflective coating
- Water resistance: 3 bar
- Strap: black alligator leather
Case and dial checks
Measure the case. Many replicas run thicker than 12.3 mm. Check the lug width and the curve of the lugs. The genuine case has sharp edges and a uniform brushed finish.
Look at the dial under a loupe. The IWC logo should sit level. The minute track should be even. The subdials at 12 and 6 should align with the center. A misaligned date window at 3 is a common flaw. The date font should match the genuine print. The hands should reach the minute track.
Movement checks
The genuine IW371416 uses Caliber 79350. It beats at 28,800 vph. A timegrapher shows the rate and amplitude. A quartz movement is an immediate mismatch. A clone 7750 can look close. Check the pusher feel. The start, stop, and reset should be firm. The rotor should spin with low noise. Ask for a movement photo. Compare the rotor engraving and the balance bridge shape.
Price and paperwork
Replica prices vary by maker and movement. A low price often points to a quartz movement or a plated case. Ask for the serial number and the case back photo. Genuine papers list the reference, serial, and dealer. A replica box and papers can look close. Treat paperwork as a check, not proof.
Bottom line
A replica IW371416 can look close on a wrist. The gaps show at the case height, the dial print, and the movement. Compare the numbers above. Ask for clear photos and a movement shot. If a seller cannot provide them, walk away.