The short answer
The replica IW544768 is a copy of IWC's Portugieser Chrono-Automatic from the 5447 reference family: a 41mm stainless steel bicompax chronograph with leaf hands and a clean, flat dial. The good versions run a Chinese-built clone of the Valjoux 7750 with the running seconds relocated to 6 o'clock and the 30-minute counter at 12, which is the same layout trick IWC uses on its calibre 79350. Cheaper versions hide a quartz module, and on those the subdials are usually frozen or simply decorative. Either way, it is a replica. It is not an IWC, and no honest seller should tell you otherwise.
What the genuine 5447 family is
IWC's reference numbering reads as base plus variant, so IW544768 belongs to the 5447 group, with 68 denoting a specific dial and case combination. The genuine watch is roughly 41mm across and about 13mm thick, with applied Arabic numerals, a domed sapphire crystal with antireflective coating, and a movement based on the 7750 running at 28,800 vibrations per hour with around 44 hours of reserve. Knowing those numbers matters, because they are what you measure a copy against.
Movement tiers in the replica market
- Quartz: thin, light, and wrong on the wrist. The sweep is dead on arrival and the chrono function often does nothing.
- Standard 7750 clone: subdials work, but the pushers feel mushy and the sweep is rough at low amplitude.
- Decorated 7750 clone (super clone tier): the rotor carries IWC-style engraving, the plates are finished cosmetically, and timing is closer to spec. This is the only tier worth considering.
Relocating the running seconds to 6 o'clock on a 7750 takes extra gearing. That gear train is where cheap copies break, so ask any seller whether the small seconds hand actually moves.
What I check before paying
- Dial printing: numeral proportions, the weight of the IWC wordmark, and whether Schaffhausen sits on the correct line.
- Hands: leaf blades should curve, not sit flat, and blued steel should look blued rather than painted.
- Crystal and coating: a faint blue or purple cast in daylight is normal, a milky haze is not.
- Case profile: lug tips, brushed versus polished transitions, and total thickness on a caliper.
- Caseback engraving: depth, font weight, reference text, and whether the serial is repeated on the lug.
- Photos of the movement, not stock renders. Then a timegrapher reading if the seller has one.
Where replicas still fall short
Movement stability is the big one. A clone may hold time for a week and drift badly after that, and no IWC service center will touch it. Genuine parts will not fit. Case polishing rarely matches the crisp transitions of the original, and the strap is usually the first thing you will want to replace. Resale value sits near zero, which is worth accepting before you buy rather than after.
Honest notes
A super clone tier piece typically costs a few hundred dollars. The genuine article trades in five figures. If the gap matters to you, buy the real thing or buy a different watch. Do not misrepresent a replica as genuine, and check your local rules on importing and owning copies before you order.