IWC's public catalog does not show a reference numbered IW371762. The Portugieser Chronograph 41 ships under numbers in the IW3716xx block, such as IW371605, IW371606 and IW371617. Listings that carry IW371762 sell a replica of that watch. Treat the string as a seller label, not a factory code.
What IW371762 refers to in listings
Photos under this number show a 41 mm steel chronograph with two subdials stacked at 12 and 6, a date at the 3 position, leaf hands and a rail minute track. That layout matches the current Portugieser Chronograph 41. It does not match the older 39 mm IW3714 series, which has a different lug shape and dial font.
Seller reference codes change. Two stores can use IW371762 for two different watches. Grade the photos, not the model text.
Genuine specs to compare
- Case: 41 mm steel, about 13 mm thick
- Water resistance: 3 bar, 30 m
- Movement: IWC caliber 69355, automatic, 28,800 vph, 46-hour power reserve
- Crystal: sapphire, coated on both faces
- Layout: 30-minute counter at 12, running seconds at 6, date at 3
Measure the case if you have calipers. A 40 mm or 42 mm case is a different reference.
Movement tells
Most automatic replicas in this price range run an Asian 7750 or a clone with a decorated rotor. The 7750 has a running seconds hand at 9 and a 12-hour totalizer at 6. Watch the 6 o'clock subdial. On the replica it moves with the chronograph. On the genuine watch it ticks at all times as running seconds.
Ask for a video. Start, stop and reset the chronograph. A jumping chrono seconds hand or a wandering 12 o'clock counter points to a low-grade module. Genuine 69355 examples run a 4 Hz balance and wind with light rotor noise.
Case, dial and strap checks
- Caseback: reference number, water resistance figure and IWC Schaffhausen engraving
- Crown: IWC logo engraved, not printed
- Indices: applied metal, set level with the dial
- Dial print: sharp edges on IWC and Schaffhausen, no bleed under a loupe
- Strap: alligator grain leather with a signed pin buckle
Replica dial print softens at 10x magnification. Look at the C in Chronograph and the tail of the g.
Price bands
Automatic listings with a 7750 sit between $180 and $500. Quartz versions cost less. A 7750 service runs $80 to $200 at a US watchmaker, and the part supply is thin. Add that to the purchase price.
No replica holds resale value. Genuine IW3716 examples sell on the secondary market for about $5,000 to $7,000, based on dial and year. That gap is the reason the number gets reused.
Questions to ask before you buy
- Which movement is inside, and can you send a photo of it?
- Does the 6 o'clock subdial run as small seconds?
- What is the case diameter in millimeters?
- Does the chronograph reset to zero?
- What is the return policy if the watch arrives with a fault?