This reference is the modern re-interpretation of the Seiko H558, one of the world's first ana-digi diver's watch from 1982. The original model achieved significant cultural status after being worn by Arnold Schwarzenegger in 1980s action films like Predator and Commando, earning it the "Arnie" nickname. The updated SNJ028P1 version retains the iconic "Tuna" shrouded case design but is modernized with the calibre H851 solar-powered movement. The new calibre eliminates the need for battery changes and powers a digital display with alarm, chronograph, and full auto-calendar functions.
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: 9 / 10 | New Old Stock, Light Wear Due to Boutique Mishandling Production: 2024 Contents: Full-set Genre: Dive Watch
Size: 48mm Thickness: approx. 14mm Lug width: 22mm
Case: Stainless steel with black shroud, brushed and matte finished, light signs of wear Bezel: Stainless steel, unidirectional bezel, black-rose gold dive insert, light signs of wear Dial: Black ana-digi display, applied markers, digital display at 12 o'clock Hands: Rose gold-tone prospex arrow hands
Crown: Stainless steel screw-down crown and pushers, light signs of wear Crystal: Hardlex crystal, light signs of wear Bracelet: Black silicone strap, light signs of wear Caseback: Stainless steel solid screw-down caseback, light signs of wear Movement: Solar Quartz Caliber: H851










