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Description
N1 Factory OMEGA Seamaster Diver 300M Chronograph 44mm Two-Tone
A highly competent execution of the complex Calibre 9900 bi-compax layout housed in a precisely machined ceramic and gold-plated architecture.
Powered by Asian 7750 (Calibre 9900 Decoration)
To achieve the specific bi-compax layout of the genuine Master Chronometer, N1 Factory utilizes a heavily modified Asian 7750 automatic chronograph base. The movement is fitted with custom decorative bridges, blackened screws, and a bespoke oscillating weight designed to emulate the visual architecture of the Co-Axial escapement. Most importantly, it successfully engineers the dual-hand sub-dial at 3 o��clock, allowing both elapsed hours and minutes to be tracked on a single axis.
卤10��15 seconds per day. Regulated standard for modified A7750 chronograph calibers.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Central chronograph seconds, running small seconds at 9 o��clock, stacked 60-minute/12-hour sub-dial at 3 o��clock, date display.
- �� Winding Direction: Unidirectional (standard A7750 architecture)
Technical Specifications
Measuring 44mm in diameter with a substantial 16.7mm thickness and a 52.80mm lug-to-lug span. The 18K yellow gold plating on the crown, pushers, and helium escape valve provides a sharp two-tone contrast.
Features laser-precision engraved wave patterns against a deep black backdrop. The skeleton hands, hour markers, and sub-dial pointers are all finished in 18K yellow gold to match the genuine aesthetic.
Unidirectional black polished ceramic bezel. The diving scale numerals are filled using a process that closely mimics OMEGA��s Ceragold technology, ensuring a flush, smooth surface.
A 21mm quick-drying premium rubber strap with 3D micro-brushed texture. It perfectly matches the lug curvature, significantly reducing the 144g overall weight burden on the wrist.
Why N1 Factory for This Reference?
Many collectors ask: ��Why not OMF?��
N1 Factory achieves superior dial execution, particularly in the depth and crispness of the laser-engraved ceramic wave pattern. Furthermore, the application of the gold tone in the bezel numerals (mimicking Ceragold) shows better integration and resistance to fading than earlier OMF iterations, while maintaining the correct dual-hand configuration at the 3 o��clock register.
Full Disclosure: The heavily modified A7750 movement requires a thick case profile (16.7mm), and the unidirectional rotor can be audibly loud during rapid wrist movements��a known quirk of the 7750 architecture.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | 210.22.44.51.01.001 |
| FACTORY / VERSION | N1 Factory Edition |
| MOVEMENT | Asian 7750 Auto Chronograph (Calibre 9900 Deco) |
| CASE MATERIAL | 316L Stainless Steel & 18K Yellow Gold Plated |
| WEIGHT & THICKNESS | 144 g | 16.7 mm |
| CRYSTAL & LUME | Domed Sapphire with Double AR | Super-LumiNova |
| DIMENSIONS | 44.0 mm � 52.80 mm � 16.7 mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | Stated 30m �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the chronograph sub-dial at 3 o��clock function on this N1 replica?
A: The N1 Factory utilizes a modified Asian 7750 movement to replicate the genuine Calibre 9900��s ��single circle double hands�� layout. Both the 12-hour and 60-minute elapsed timers are stacked and fully functional within the 3 o��clock sub-dial, rather than being fixed faux indicators.
Q: Will the gold on the bezel numerals fade over time?
A: N1 Factory employs a plating technique designed to mimic OMEGA��s Ceragold process, integrating the 18K yellow gold plating deeply into the ceramic markers. While highly durable and resistant to fading, it is still a plated surface and should be kept away from harsh abrasives or polishing cloths.
Q: Is the 16.7mm thickness noticeable on the wrist?
A: Yes, this is a substantial timepiece. However, the 144g overall weight is well-managed by the fitted black rubber strap, which curves sharply at the 21mm lugs (52.80mm lug-to-lug) to mitigate the ��top-heavy�� feel commonly associated with 44mm chronographs.
Q: Are there any known movement quirks with this specific N1 release?
A: Because it relies on an Asian 7750 base caliber to power the complex chronograph functions, the unidirectional winding rotor can be audibly noisy during rapid wrist movements. Additionally, users should strictly avoid adjusting the date between 8 PM and 2 AM to prevent damaging the date-wheel mechanism.
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