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Description
GH Factory IWC Ingenieur Automatic 40 Green Dial IW328908
GH Factory establishes a formidable benchmark for the modern Ingenieur, leveraging the slim ETA-2892 architecture to maintain authentic case proportions.
Powered by Asian ETA-2892 Clone
To achieve the ultra-slim profile required for the Genta-inspired design, GH Factory utilizes the reliable Asian ETA-2892 automatic movement. This caliber was specifically chosen because its thin architecture allows the case thickness to remain at approximately 11mm, incredibly close to the genuine specification. Beating at 28,800 vibrations per hour, the movement provides a fluid sweep of the seconds hand and robust daily reliability.
Rated at ±10–15 seconds per day. The ETA-2892 base is highly serviceable and can be further regulated by a competent watchmaker to achieve tighter chronometric tolerances.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Center hours, minutes, hacking seconds, and quick-set date
- ✅ Winding Direction: Bidirectional rotor winding
Technical Specifications
The 40mm case features meticulous alternating brushed and polished surfaces. GH Factory achieves an approximate 11mm thickness and an exact weight of 150g, ensuring the tactile presence mimics the genuine article.
Showcasing the signature stamped grid structure, the dial captures the complex teal-green hue (#2D5A27). Printing is crisp, and the applied indices feature even Super-LumiNova application.
The distinctive round bezel with five polygonal screws is functionally fixed to the case ring. The alignment of the screws and the brushing pattern on the bezel flat are executed with high precision.
The integrated bracelet tapers elegantly toward the butterfly clasp. Link articulation is smooth, with polished center connector links providing a stark contrast to the heavy brushing.
Why GH Factory for This Reference?
Many collectors ask: “Why not V7 Factory?”
While V7F is widely recognized for its Ingenieur releases, GH Factory offers a highly compelling alternative through its specific use of the ETA-2892 base movement and exacting 150g weight matching. The GH edition prioritizes the ultra-slim ~11mm case geometry required for the integrated design to sit properly on the wrist, maintaining an excellent cost-to-performance ratio without sacrificing case finishing.
Full Disclosure: The butterfly clasp mechanism on the GH Factory edition exhibits slightly more endplay than the V7F variant, and the ETA-2892 rotor may produce minor audible noise in quiet environments.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | IW328908 |
| FACTORY / VERSION | GH Factory Edition |
| MOVEMENT | Asian ETA-2892 Clone |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 150 g | ~11 mm |
| CRYSTAL & LUME | Sapphire with 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: How does the GH Factory thickness compare to the genuine Ingenieur?
A: The genuine IW328908 is 10.8mm thick. The GH Factory utilizes an ETA-2892 clone movement to achieve an approximately 11mm profile, making the variance virtually imperceptible on the wrist and maintaining the authentic Genta design geometry.
Q: Is the grid dial texture accurately replicated?
A: GH Factory uses a stamped method to recreate the complex grid structure. The teal-green hue shifts dynamically under different lighting, closely mimicking the genuine aqua tone.
Q: Can the integrated bracelet be swapped for a standard strap?
A: No, the Ingenieur features a proprietary integrated lug system. It requires specifically designed IWC straps or bracelets tailored for the 40mm Ingenieur case.
Q: What is the main drawback of the GH Factory version compared to V7F?
A: While GH nails the case geometry and weight (150g), the butterfly clasp tolerances are slightly less refined than V7F, and the ETA-2892 rotor may exhibit minor audible noise during vigorous wrist movement.
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