A replica IW371449 is a copy of an IWC Portugieser Chronograph. Good copies sell for $250 to $450. Most run a modified Valjoux 7750. The three things that separate a good copy from a bad one are case thickness, subdial spacing, and the gear train that drives the running seconds at 6 o'clock.
What the IW371449 Is
IW371449 sits in the IWC Portugieser Chronograph 3714 family. The generation uses a 40.9 mm case, sapphire on both sides, and caliber 79350. That caliber is a Valjoux 7750 base with two changes: the running seconds move from 9 o'clock to 6 o'clock, and the 12-hour counter is removed. The result is a two-register dial. Chronograph minutes sit at 12. Running seconds sit at 6. Beat rate is 28,800 vph. Power reserve is about 44 hours. Water resistance is 3 bar, which means splash protection, not swimming.
The dial uses applied numerals and feuille hands. The date window sits at 3 o'clock.
Note: this page does not confirm the dial color, case metal, or production years tied to the exact IW371449 reference. Check those against IWC before you compare a copy.
Movement Tiers in Replicas
- Quartz: $60 to $120. The chronograph hands are decorative or sweep in one-second steps. Seconds at 6 is easy to fake here.
- Asian 7750, seconds relocated: $200 to $300. This is the common tier. A transfer gear or an added pinion moves the seconds hand to 6.
- Decorated 7750: $350 to $500. Better finishing, closer rotor engraving, sometimes a swapped date wheel.
The seconds relocation is the weak point. On a stock 7750, seconds run at 9 directly off the main train. On the IWC layout, that motion has to travel. Copies use a small extra gear. If that gear is soft or the bridge is not aligned, the seconds hand stutters, stops, or drags the chronograph minute counter.
What to Inspect
- Thickness. The original case is about 12.3 mm. Many copies measure 13.5 mm to 15 mm. Ask for a caliper photo.
- Subdial position. Both subdials should sit on a vertical line through the center. A 7750 with a shifted module can push the 6 o'clock subdial off axis.
- Date font and window. Thin font, no border frame on most versions.
- Hands. Feuille shape, leaf profile, correct length so the tip reaches the minute track.
- Crystal. Anti-reflective coating on the inside only. A blue or purple tint under light is wrong.
- Caseback engraving. Depth and letter spacing. Copy engraving looks shallow and rounded.
- Strap. Alligator-grain leather with hand stitching. Machine stitching is a sign of a cheap build.
Price Bands and Service
Plan on a service for any mechanical copy with a relocated seconds hand. A watchmaker who knows the 7750 can clean and time one for $80 to $150. Parts for the transfer gear are hard to source, so buy from a seller who stocks spares or offers a warranty.
Open Questions
IWC reference numbers are not always sequential by feature. Without the original catalog entry for IW371449, dial and metal details stay unconfirmed. Measure the copy you are offered against the 3714 family specs above, and ask the seller for photos of the movement with the rotor removed.