Powered by Modified Asian 7750 (IWC 79350 Clone)
ZF Factory made horological history in the replica world by successfully modifying the standard A7750 movement. By removing unnecessary gears and redesigning the bridge layout, they achieved a seamlessly integrated running seconds at 6 o’clock while drastically reducing the movement’s thickness to match the genuine caliber.
- ✅ Power Reserve: Approximately 40-44 Hours
- ✅ Functionality: Hours, minutes, sub-seconds at 6 o’clock, and fully functional chronograph (center sweep seconds, 30-minute counter at 12 o’clock).
- ✅ Reliability: Highly stable 28,800 VPH beat rate, providing a smooth sweep and reliable timekeeping.
🏆 Why We Chose ZF (Z Factory) for this Model?
Many clients ask: “Why not YLF or AZF?”
Here is the honest truth: While YLF offers a competitive version, ZF wins undeniably in terms of movement thinness and dial typography. Standard 7750 replicas are notoriously thick (13.5mm+). ZF was the first to custom-modify the movement to achieve the genuine 12.00mm case profile. For the Portugieser Chronograph, perfect visual proximity to the Genuine on the wrist was our top priority.
Full Disclosure: The modified A7750 rotor can be slightly louder than the Gen in a completely silent room (the infamous “7750 wobble”), but this is standard for this movement clone type and easily manageable.
Common Questions about the IW371445
Q: Is this ZF version waterproof?
A: Out of the box, it is sealed for basic daily use (splash/rain proof). However, since it is a chronograph with pump pushers, we strongly recommend a professional pressure test before submerging it in water.
Q: How does the Modified A7750 compare to the Genuine?
A: It features a similar 40+ hours power reserve and operates identically. Because it operates at 28,800 VPH, the chronograph sweep is exceptionally smooth. It is highly regarded as one of the most reliable modified chronographs on the market.
Q: What is the biggest difference compared to Gen?
A: Under a macro lens, the 3D depth of the sub-dial concentric circles may show extremely minor variances. On the wrist, due to the identical 12.00mm thickness and brilliant AR crystal, it is virtually indistinguishable to the naked eye.
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