The reference SRH005P1 serves as the technical flagship for the Velatura collection. It houses the Caliber 5D44 Kinetic Direct Drive featuring Seiko’s hybrid technology that allowed the user to manually power the electrical generator via the crown. The dial architecture is defined by a retrograde day display and a complex power reserve gauge at nine o’clock, which visualizes real-time energy transfer efficiency during the winding process. Externally, the case utilizes a distinct industrial geometry with prominent bezel screws and integrated lugs.
Established in 1881 by Kintarō Hattori, Seiko is defined by its principle of complete vertical integration, manufacturing every single component of its timepieces in-house. They were the primary catalyst of the "Quartz Crisis" with the commercial release of the 1969 Astron—the world’s first quartz watch—the brand simultaneously advanced mechanical horology, developing one of the first automatic chronographs and pioneering high-frequency movements to challenge Swiss standards.
Seiko's relentless innovation continues with proprietary technologies like Spring Drive, which blends mechanical power with quartz precision. This technical mastery underpins Seiko's legacy in creating archetypal and exceptionally durable tool watches, particularly in the domain of professional diving.
Overall Grade: 7 / 10 | Great Condition, Medium Wear Production: est. 2017 Contents: Watch Only Genre: Sports Watch
Size: 44mm Thickness: approx. 13mm Lug width: approx. 22mm
Case: Stainless steel, mixed brushed and mirrored finish, protective crown guard structure, medium Wear Bezel: Stainless steel with black PVD coating, fixed, Medium Wear Dial: Black guilloche dial, applied markers, retrograde day indicator, power gauge Hands: Broad sword-shaped hands
Crown: Stainless steel, push-pull crown with flanked protection, medium Wear Crystal: Sapphire crystal, medium Wear Bracelet: Stainless steel with black pvd center links, medium Wear Caseback: Solid stainless steel, screw-down, medium Wear Movement: Quartz Caliber: 5D44