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Description
GH Factory IWC Ingenieur Automatic 40 Ref. IW328902
GH Factory delivers a mechanically stable and dimensionally accurate recreation of the modern Ingenieur by leveraging the proven A2892 architecture.
Powered by Asian ETA-2892
To achieve the slender 11.0mm profile required by the Ingenieur case geometry, GH Factory utilizes the Asian ETA-2892 automatic caliber. This movement is specifically chosen for its thin architecture, which allows the replica to mirror the genuine watch’s proportions without the bloated caseback common to standard ETA-2824 clones. The caliber operates at a standard 28,800 vibrations per hour, ensuring a smooth sweep of the rhodium-toned seconds hand, and features a reliable quick-set date mechanism.
Standard A2892 clone base movements typically yield an accuracy of ±10–15 seconds per day straight from the factory, though they can be regulated by a watchmaker to tighter tolerances.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Quick-set date at 3 o’clock
- ✅ Winding Direction: Bidirectional winding rotor
Technical Specifications
Measuring 40mm in diameter with a verified 11.0mm thickness, the case exhibits a highly accurate ratio of vertical brushing to polished chamfers along the flanks.
The silver-plated dial features a stamped grid texture that closely mimics the genuine article’s light play, complemented by rhodium-toned indices and Super-LumiNova application.
The signature round bezel is secured by five functional polygonal screws, featuring a prominent vertical brush that contrasts cleanly with the polished outer lip.
Constructed with solid end links, the bracelet tapers elegantly to a butterfly folding clasp, contributing significantly to the verified 150g total weight.
Why GH Factory for This Reference?
Many collectors ask: “Why not V7 Factory?”
While V7 Factory produces an excellent iteration of the IW328902, GH Factory stands out by achieving a verified 11.0mm thickness and a 150g weight that provides substantial wrist presence. The depth of the stamping on the GH Factory galvanized grid dial offers slightly more pronounced texture in direct sunlight, appealing to those who prioritize dial dynamics.
Full Disclosure: The butterfly clasp on the GH Factory edition exhibits marginally more lateral endplay than the genuine, requiring a firm press to engage securely.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | IW328902 |
| FACTORY / VERSION | GH Factory Edition |
| MOVEMENT | Asian ETA-2892 Automatic |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 150g | 11.0mm |
| CRYSTAL & LUME | Sapphire with colorless AR | Super-LumiNova |
| DIMENSIONS | 40.0mm × 45.7mm × 11.0mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE | 30m stated rating — professional pressure test recommended before swimming |
Collector Q&A
Q: How does the GH Factory grid dial compare to the genuine IW328902?
A: GH Factory utilizes a stamping process to replicate the galvanized grid pattern. While highly accurate in standard lighting, macro inspection reveals slightly softer edges on the grid intersections compared to the genuine IWC’s precise machining.
Q: Is the ETA-2892 movement a true Swiss ETA or an Asian clone?
A: This model utilizes an Asian clone of the ETA-2892 (A2892). It shares the same architecture and slim profile, allowing for the 11.0mm case thickness, but is manufactured in Asia. It is highly reliable and easily serviceable by local watchmakers.
Q: Are the five bezel screws functional or purely decorative?
A: Like the genuine Ingenieur Automatic 40, the five polygonal screws on the GH Factory bezel are functional and secure the bezel to the mid-case, rather than being mere aesthetic appliqués.
Q: What is the most prominent flaw on this specific GH Factory release?
A: The primary tell lies in the butterfly clasp and bracelet articulation. While the 150g weight feels substantial, the H-links exhibit slightly more lateral play than the genuine, and the clasp mechanism requires firm pressure to secure completely.