What Is a Fake IW371436?
A fake IW371436 is a replica of the IWC Portugieser Chronograph, a 40.9 mm stainless steel watch with a two-register dial. The genuine reference runs the Calibre 79350, a chronograph movement built on the Valjoux 7750 base. A replica copies the outside of that watch, and sometimes a clone of the same movement family.
Copies of this reference sit in the middle of the replica market. The dial layout is simple enough to copy with common parts, so a careful fake can look close in a photo. The details that give it away are case thickness, dial printing, and the position of the subdials.
What the Real IW371436 Looks Like
The watch belongs to the Portugieser Chronograph family, references starting with 3714. The case measures 40.9 mm across and sits about 12 mm thick, on an alligator leather strap. Dial colors and finishes change by version and production year, so confirm the exact reference with the seller before you compare anything else.
- Bicompax dial: 30-minute counter at 12 o'clock, small seconds at 6 o'clock.
- Applied Arabic numerals with a fine railroad minute track.
- Leaf-shaped hour and minute hands, slim chronograph pushers at 2 and 4.
- Calibre 79350, automatic, 28,800 vibrations per hour, around 44 hours of power reserve.
Why This Reference Gets Copied So Often
The real watch uses a 7750-based movement. That matters for replicas, because Asian 7750 clones are easy to source. A builder can fit the clone into a copy case and keep the case profile close to the original.
Compare that with a thin dress watch or a high-beat in-house chronograph. Those need custom parts, and cheap versions do not look right. The Portugieser Chronograph sits in the easy zone.
What Separates a Good Fake IW371436 From a Bad One
Case and Crown
Case thickness is the first tell. A 7750 clone plus a rotor and a module stack needs room, and cheap cases grow fat. A watch that sits 2 mm taller than the real one looks wrong from the side.
Check the crown size and the pusher shape. Real pushers are slim and sit flush with the case band. Budget copies use thick, generic pushers that stick out.
Dial and Printing
Dial print should be sharp under a loupe. Soft edges, uneven spacing, or a fuzzy brand mark point to a low-grade dial.
Applied numerals catch light and cast a small shadow. Printed numerals look flat. Ask for a raking-light photo before you judge a dial from a straight-on shot.
Subdials and Hands
Subdial spacing follows the movement inside. A 7750 places the counters where the gears sit, which lands close to the original layout. A quartz fake puts them wherever the maker wants, so the spacing drifts.
Hand length is another check. Replica leaf hands run short or thick, and the tips miss the minute track.
Movement
An automatic clone has a sweeping seconds hand and a working 30-minute counter. A quartz fake jumps once per second, which anyone can spot from across a table. Ask which movement is installed before you pay, because the answer sets both the price and the service life.
Movement Options You Will See
- Asian 7750 clone: automatic, 28,800 vph, working chronograph. The closest match to the real layout.
- Quartz: cheap and light. The ticking small-seconds hand gives it away in any video.
- Decorated clones: engraved bridges and rotor plates meant to look like the Calibre 79350. The decoration is cosmetic.
How to Spot a Weak Copy From Listing Photos
- Check the side profile. A thick case with a flat caseback sits high on the wrist.
- Watch the small seconds at 6 o'clock. A ticking hand means quartz.
- Compare numeral shapes to official photos. Replica dials use wider or flatter digits.
- Look at the crown and pushers. Oversized parts are a common shortcut.
- Ask for a caseback and movement photo. Sellers who dodge the request often have a reason.
- Watch for stock images. Real seller photos show dust, fingerprints, and odd phone camera angles.
What a Replica Cannot Copy
Movement finishing is the biggest gap. The real 79350 carries Geneva stripes and polished screws, while clones show flat, dull surfaces once the caseback comes off.
Long-term accuracy and service support are the other gaps. A clone movement can run well for years, but a watchmaker may refuse to service it or struggle to find parts. Resale value lands near zero.
Questions to Ask Before You Buy
- Which reference and dial version is this copy based on?
- Which movement is installed, and at what beat rate?
- What are the measured case width and thickness?
- Is the crystal sapphire or mineral glass?
- What happens if the watch arrives with a fault?
FAQ
Is a fake IW371436 worth buying?
It can be, if you want the look of a Portugieser Chronograph and you accept that it is a copy. Buy from a seller who states the movement and case specs. Skip listings that hide those details.
How much does a fake IW371436 cost?
Prices spread wide. Quartz copies sit at the bottom, automatic 7750 clones cost more, and decorated versions with better dials cost more again. Shipping, box sets, and dealer margins push the total up, so compare the same spec level when you shop.
Can a jeweler tell a fake IW371436 from the real watch?
Yes, and most do it in seconds. Caseback engraving, dial printing, and movement finish are the usual giveaways. Any watchmaker who opens the case will know at once.