September 24, 2025
The release of the SevenFriday PG/01 marks the brand’s first foray into GMT complications, integrating a purpose-driven mechanical upgrade into its distinct design language. This analysis moves beyond aesthetics to examine the engineering, specifications, and material choices that define this timepiece from a technical standpoint.
Case Architecture and Dimensions
The foundation of the PG/01 is a multi-part case constructed from brushed and polished stainless steel, measuring 44.5mm in diameter with a 44mm lug-to-lug length and a total height of 13.55mm. Its signature TV-shaped profile is maintained, but the lug design is notable; rather than traditional protruding horns, the 26mm lugs are integrated directly into the underside of the case. This architectural choice significantly alters its on-wrist presence. The dial is protected by a domed sapphire crystal with an anti-reflective coating applied to its interior surface, framed by a bezel featuring a recessed black lacquer ring.
Caliber 9075 GMT Mechanism
At the heart of the PG/01 is the Miyota Caliber 9075 automatic movement. This is a significant choice, as it provides “flier-style” GMT functionality, allowing the local 12-hour hand to be independently adjusted in one-hour increments. Operating at a frequency of 28,800 vph (4 Hz), the caliber offers a 42-hour power reserve. The display is mechanically complex, utilizing a multi-level dial where an open-worked rotating disc with a yellow indicator displays the second timezone against a 24-hour scale. This separates the GMT function from the primary time-telling hands, which are skeletonized.
Materials and Technical Integration
The PG/01 is engineered for daily use, with a standard push/pull crown and a screw-on caseback contributing to its 50-meter water resistance rating. A key technical feature is embedded directly into the polycarbonate disc on the caseback: an NFC chip. This component permanently links the physical watch to a digital record and corresponding NFT, enabling ownership verification through the SevenFriday smartphone application. While the hands feature luminous tips for low-light legibility, the primary focus is on the integration of this modern authentication technology.
In conclusion, the SevenFriday PG/01 GMT is a noteworthy technical evolution for the brand. The selection of the robust Miyota 9075 “flier” GMT caliber, combined with the brand’s unconventional case engineering and the innovative use of NFC technology for authentication, creates a timepiece that offers substantial value from a mechanical and technological perspective.
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