If you are comparing a fake IWC IW544732 with a genuine one, the short answer is that the top pick for most buyers is a high grade first copy built on a reliable automatic base (ETA, Sellita, or a top Japanese movement) with a true sapphire crystal and correctly printed dial text, because that mix closes most of the visible gap while keeping the watch serviceable. We judged every option on six things: movement base and rotor behavior, case and lug finishing, dial printing and hand shape, crystal material and coating, weight and balance, and case back engraving. None of these checks replaces a hands-on look, but they tell you where a maker spent money and where it did not.
Movement: the first thing to check
A genuine IW544732 runs an IWC movement with a level of finishing that shows through an open case back: stripes on the bridges, blued screws, engraved plates, and a rotor that glides rather than spins. A first copy almost always uses a bought-in base, so the giveaway is not the timekeeping. It is the decoration and the sound.
- Pros of the first copy: parts and service are cheap, and a good ETA or Sellita base keeps time within a few seconds a day.
- Cons: rotor noise on cheap builds, a wrong beat rate, printed or laser-etched decoration instead of real finishing, and a winding feel that is thin or gritty.
Recommendation: if you plan to wear the watch open-backed or show it to friends, pay for the tier that uses a decorated automatic. If you never open it, a solid basic automatic build is the practical choice.
Case, lugs, and finishing
Genuine IWC cases are machined, then finished by hand. The flanks are brushed, the bevels are polished, and the transition from lug to case is sharp enough to catch a fingernail. Replica cases come off CNC machines too, but the polishing is done faster and with softer edges.
- Pros: at arm's length the silhouette reads correctly, and the size sits well on most wrists.
- Cons: rounded bevels, uneven brushing, lug holes that are slightly off center, and spring bars that rattle in the lugs.
Use case: for office and weekend wear the case is the least detectable part. For close-up photography it is the second most obvious tell after the dial.
Dial printing, hands, and markers
The dial is where a first copy either earns its place or fails. Look at the weight of the brand text, the shape of the numerals, the flatness of the lacquer, and the bevel on the hands.
- Pros: good copies get the layout, the subdial spacing, and the color balance right.
- Cons: thick or fuzzy printing, markers that sit slightly high, lume that is uneven, and hands with a flat top instead of a polished bevel.
Recommendation: ask for a macro photo of the dial at 12 o'clock and of the hand tips before you buy. If the seller will not send one, move on.
Crystal, case back, and engraving
Genuine watches use sapphire with an anti-reflective coating on one or both sides. Cheaper copies use mineral glass or sapphire without coating, which shows as a milky reflection under indoor light. The case back is the other easy check: engraving depth, the reference number font, and the spacing of the text.
- Pros: a proper sapphire copy looks clear from every angle and resists scratches.
- Cons: mineral glass scratches, uncoated sapphire glares, and shallow laser engraving on the back looks grey rather than crisp.
Weight, strap, and clasp
Weight is a rough shortcut. A genuine steel case with a solid movement and a quality strap feels dense and balanced. A light copy with a hollow case and a thin strap feels top heavy or hollow in the hand.
- Pros: the best first copies use solid links, real leather, and a signed clasp that closes with a firm click.
- Cons: folded clasps, stiff straps, and a case that feels noticeably lighter than expected.
Recommendation: budget for a strap upgrade. A good strap changes the feel more than any other single fix.
Who should buy the first copy, and who should save for the genuine
Buy the high grade first copy if you want the Portuguese look for daily wear, you accept that service options and resale are limited, and you are not trying to pass it off as genuine. Save for the genuine if the movement matters to you, if resale matters to you, or if you plan to hand the watch down.
A ten minute inspection routine
- Set the time and feel the crown. Gritty or loose winding is a warning.
- Look at the dial under a phone light at an angle. Printing should be sharp and flat.
- Check the date or subdial alignment against the markers.
- Tap the crystal with a fingernail. Sapphire sounds dull, mineral sounds thin.
- Weigh the watch in your hand and check the clasp click.
- Read the case back engraving with a loupe app or a magnifier.