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Description
GH Factory IWC Ingenieur Automatic 40 Ref. IW328901
A highly capable execution of the 2023 Ingenieur revival, leveraging the ETA-2892 architecture to achieve an authentic ~11mm case profile.
Powered by Asian ETA-2892 Clone
To accurately replicate the slender dimensions of the genuine IWC caliber 32111 equipped models, GH Factory has opted for the proven Asian ETA-2892 clone architecture. This high-beat movement operates at 28,800 vibrations per hour, ensuring a smooth sweep of the seconds hand. The slim profile of the 2892 base is critical here, allowing the integrated case to maintain its ergonomic curvature without unnecessary bulk.
Standard ETA/clone base movements: ±10–15 s/day.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Quick-set date, hacking seconds
- ✅ Winding Direction: Bidirectional
Technical Specifications
Measuring 40mm in diameter with a verified thickness of ~11mm and a substantial 150g weight, the case features accurately alternating satin-brushed and polished chamfers.
The signature relief checkerboard pattern is sharply stamped, offering dynamic contrast. Luminous application is even across the baton indices and hands.
The iconic round bezel is secured by five functional, recessed polygonal screws, correctly aligned to mirror the genuine Genta-inspired aesthetic.
The 316L steel bracelet features solid H-links with ergonomic curvature, secured by a reliable twin-trigger butterfly folding clasp with tight tolerances.
Why GH Factory for This Reference?
Many collectors ask: “Why not V7 Factory?”
While V7F is a dominant player for IWC replicas, GH Factory offers a highly compelling alternative through strict adherence to the ~11mm case profile via the ETA-2892 clone. The GHF execution achieves a verified 150g weight, providing a tactile heft that feels incredibly substantial on the wrist, paired with excellent brushed finishing on the integrated H-links.
Full Disclosure: The rotor on the Asian ETA-2892 base can be slightly audible in quiet environments, and the dial grid stamping lacks the absolute microscopic depth of the genuine article under a horological loupe.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | IW328901 |
| FACTORY / VERSION | GH Factory Edition |
| MOVEMENT | Asian ETA-2892 Clone |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 150 g | ~11 mm |
| CRYSTAL & LUME | Sapphire Double AR | Super-LumiNova |
| DIMENSIONS | 40mm × 45.5mm × ~11mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE | Stated 50m — professional pressure test recommended before swimming |
Collector Q&A
Q: Does the GH Factory Ingenieur IW328901 use the correct five-screw bezel alignment?
A: Yes, the five functional polygonal screws on the bezel are correctly aligned and recessed, matching the genuine Genta-inspired design language.
Q: How does the 11mm thickness compare to the genuine IWC 32111 caliber models?
A: The genuine IW328901 measures 10.8mm thick. The GH Factory utilizes an Asian ETA-2892 clone to achieve a highly comparable ~11mm profile, making the structural difference virtually imperceptible on the wrist.
Q: Are the integrated bracelet links interchangeable with genuine IWC components?
A: While the H-link construction accurately mimics the genuine geometry, replica bracelet pins and links are machined to different micro-tolerances and are not guaranteed to fit genuine clasps or cases seamlessly.
Q: What is the main known limitation of this specific GH Factory release?
A: The primary quirk lies in the Asian ETA-2892 rotor bearing, which can be slightly audible during rapid wrist movements. Additionally, the checkerboard dial texture, while visually accurate at arm’s length, exhibits slightly softer relief transitions under macro magnification compared to the genuine stamping.
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