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Description
N1F Omega Seamaster Diver 300M Chronograph 210.62.44.51.01.001
A technically proficient execution of Omega��s twin-register chronograph, featuring a functional 3 o��clock dual-hand subdial.
Powered by Clone Calibre 9900
The engine driving this N1F release is a heavily modified Asian 7750 automatic chronograph movement, re-geared to replicate the dial layout of the genuine Calibre 9900. The factory has invested in custom decorative plates and blackened balance wheel components to simulate the visual signature of a Co-Axial escapement when viewed through the sapphire caseback. While it does not operate at the genuine��s unusual 25,200 vph frequency, the 28,800 vph beat rate ensures a smooth sweep for the central chronograph seconds hand.
Standard clone chronograph movements typically yield 卤10��15 s/day out of the box. Positional variance is expected due to the added friction of the modified chronograph module.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Date display at 6 o��clock, continuous seconds at 9 o��clock, combined 12-hour/60-minute chronograph at 3 o��clock
- �� Winding Direction: Unidirectional (clockwise)
Technical Specifications
The 44mm case features alternating brushed and polished surfaces. It measures a verified 16.5mm in thickness, a necessary tolerance to house the modified 7750 chronograph base.
Laser-engraved wave patterns offer high contrast against the applied rose gold indices. The subdial at 3 o��clock successfully stacks the minute and hour totalizers.
The unidirectional bezel features an enamel-style filling process for the markers, designed to resist yellowing over time while maintaining a crisp, glossy finish.
A pliable black rubber strap fitted to the exact lug dimensions, secured by a rose gold plated tang buckle featuring deep, accurate Omega engraving.
Why N1F for This Reference?
Many collectors ask: ��Why not OMF?��
While OMF has historically produced numerous Omega chronographs, the N1F provides a more consistent integration of the 3 o��clock dual-hand subdial, whereas older OMF batches occasionally suffered from hand-stack alignment issues. The N1F ceramic dial finishing also presents slightly sharper wave ablation under macro inspection.
Full Disclosure: Because the N1F relies on a modified 7750 base rather than a true column-wheel architecture, pusher engagement is notably stiffer than genuine, and the verified 16.5mm case thickness sits prominently on the wrist.
Data Sheet
| MODEL REFERENCE | 210.62.44.51.01.001 |
| FACTORY / VERSION | N1F Edition |
| MOVEMENT | Clone 9900 (Modified 7750 Base) |
| CASE MATERIAL | Rose Gold Plated 316L Steel |
| WEIGHT & THICKNESS | [unconfirmed] | 16.5mm |
| CRYSTAL & LUME | Domed Sapphire | Super-LumiNova |
| DIMENSIONS | 44mm � [unconfirmed] � 16.5mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m stated rating �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the 3 o��clock subdial function on this N1F clone 9900?
A: It functions as a combined 12-hour and 60-minute chronograph counter, successfully mimicking the twin-hand layout of the genuine Calibre 9900. Both hands are engaged when the chronograph is running.
Q: Is the rose gold plating on the 44mm case durable for daily wear?
A: The case utilizes PVD plating over a 316L stainless steel base. While resilient against normal friction, heavy impacts or abrasive surfaces will scratch through the gold layer, revealing the silver-toned steel beneath.
Q: Does the helium escape valve at 10 o��clock actually work?
A: No. While the conical helium escape valve turns smoothly and produces a crisp sound, it is strictly a cosmetic feature on this clone and does not release trapped gasses.
Q: What is the primary limitation of the N1F Calibre 9900 clone?
A: The movement is based on a heavily modified Asian 7750 architecture rather than a true column-wheel design. This necessitates a verified 16.5mm case thickness and results in a noticeably stiffer pusher feel compared to the genuine mechanism.
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