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Description
N1 Factory OMEGA Seamaster Diver 300M Chronograph 44mm
A heavy-duty replica defined by its fully functional 3 o��clock co-axial chronograph register and precise ceramic execution.
Powered by N1 Custom Calibre 9900
To replicate the complex functionality of the genuine Master Chronometer movement, N1 utilizes a highly modified Asian 7750 automatic caliber. The architecture incorporates a custom module that physically links the 12-hour and 60-minute hands within the 3 o��clock subdial, allowing for true elapsed time tracking. The mechanism features blackened screws and Arabesque Geneva waves visible through the sapphire caseback, and passes through for timing stability and amplitude.
卤10��15 s/day (Standard Asian 7750 base regulation).
- �� Power Reserve: Approximately 40 hours
- �� Complications: Co-axial 12-hour/60-minute chronograph at 3 o��clock, running seconds at 9 o��clock, date at 6 o��clock
- �� Winding Direction: Unidirectional (clockwise)
Technical Specifications
Measuring 44mm in diameter and a substantial 17.2mm thick, the case provides significant wrist presence. The 226g weight is balanced by fine satin brushing along the flanks and bright polished bevels on the lugs.
The ZrO2 ceramic dial features laser-engraved wave patterns with consistent depth. Thermally blued hands and indices are filled with dual-color Super-LumiNova (green for the minute hand and bezel pip, blue elsewhere).
The unidirectional bezel is fitted with a deep blue ceramic insert, utilizing white enamel for the diving scale to prevent discoloration. The chronograph pushers at 2 and 4 o��clock are also crafted from matching blue ceramic.
The heavy stainless steel bracelet features alternating brushed and polished links, secured by a solid fold-over diver clasp with a functional micro-adjustment extension mechanism.
Why N1 Factory for This Reference?
Many collectors ask: ��Why not OMF?��
While previous iterations from other factories struggled with non-functional 3 o��clock subdials or inaccurate dial textures, N1 Factory developed a dedicated module for true dual-hand chronograph functionality. Additionally, the execution of the blue ceramic pushers and the sunburst effect on the PVD grey dial align much closer to the genuine article��s high-contrast aesthetic.
Full Disclosure: The reliance on a modified Asian 7750 base movement results in a notably thick case profile (17.2mm) and characteristic unidirectional rotor noise, which can be audible in quiet environments.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | 210.30.44.51.06.001 |
| FACTORY / VERSION | N1 Factory Edition |
| MOVEMENT | N1 Custom Cal. 9900 (A7750 Base) |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 226g | 17.2mm |
| CRYSTAL & LUME | Domed Sapphire (Double AR) | Dual-Color Super-LumiNova |
| DIMENSIONS | 44.0mm � 21.0mm (Lug) � 17.2mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m �� professional pressure test recommended before swimming |
Collector Q&A
Q: Does the 3 o��clock chronograph subdial work like the genuine?
A: Yes, unlike earlier replicas that featured static hands or linked non-functional dials, the N1 Factory Calibre 9900 clone features a fully functional co-axial 12-hour and 60-minute counter at the 3 o��clock position.
Q: Are the hands and indices painted blue or heat-blued?
A: N1 Factory utilizes a thermal bluing process (baked blue) for the skeletonized hands and hour markers. This ensures a deep, metallic finish without the rough edges often seen on painted alternatives.
Q: Is the helium escape valve at 10 o��clock functional?
A: The HEV is purely cosmetic on this replica. While the crown can be unscrewed, it does not provide genuine helium release functionality for saturation diving.
Q: What is the main drawback of this N1 Factory chronograph?
A: Due to the heavily modified Asian 7750 movement required to replicate the 9900��s complex functions, the watch is quite thick at 17.2mm. Additionally, the unidirectional winding rotor can produce audible spinning noise in very quiet environments.
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