ZF Factory Edition — Grade 2 Titanium Bracelet
The ZF Factory edition of the Tudor Pelagos 39 (ref. M25407N-0001) represents a significant milestone in replicating modern, lightweight tool watches. By utilizing genuine Grade 2 titanium, ZF has achieved the exact 104g to 108g weight profile of the authentic piece, resolving the bulkiness associated with earlier 42mm iterations. This specific release is widely recognized across enthusiast forums for its precise execution of the sunray satin finish on both the dial and ceramic bezel, a critical visual departure from the fully matte finish of its larger predecessor.
Powering this reference is a highly reliable Asian Custom 2824 automatic caliber, carefully selected to maintain the slim 11.8mm case profile. While it operates at a standard 28,800 vph, the movement is decorated with MT5400-style bridges to mimic the genuine architecture. As a standard ETA-clone architecture, the power reserve is approximately 36 hours, providing stable amplitude and straightforward serviceability for long-term ownership.
The 39mm case features an all-directional brushed finish that accurately captures the muted, dark grey tone inherent to Grade 2 titanium. The micro-domed black dial is executed without a date window, ensuring exact symmetry, and features monobloc luminescent ceramic hour markers without metal surrounds. The cherry red PELAGOS text at 6 o’clock provides a sharp, heavily contrasted focal point, while the T-fit micro-adjustment clasp offers 8mm of tool-free sizing.
- Movement: Asian Custom 2824 Automatic — Approximately 36 hours
- Case Material: Grade 2 Titanium, 39mm diameter, 21mm lug width, 104g-108g weight
- Bezel: Black ceramic with sunray satin finish and fully lumed scale
- Crystal: Flat scratch-resistant sapphire with inner anti-reflective coating
- Bracelet: Grade 2 Titanium with brushed finish and T-fit micro-adjustment clasp
- Water Resistance: 50m stated — professional pressure test recommended before swimming. Do not operate the crown while the watch is submerged.
This 39mm titanium diver is ideally suited for collectors seeking a highly capable, under-the-radar daily wearer. Its reduced proportions and exceptional lightness make it a versatile mechanical alternative that transitions seamlessly from active duty to urban environments.

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