copy of Seiko 5 Sports Field Series automatic brown dial nylon strap 41 mm

A new interpretation of the Field Series

With the HDB009, the Seiko 5 Sports Field Series adopts an even more adventure and exploration-oriented style.
This 2026 version takes the codes of vintage field watches while adding a more tactical and contemporary aesthetic.
Its brown dial combined with a bidirectional brown compass bezel gives it an assertive personality, directly inspired by the outdoor and military world.
Designed for the amateurs of robust utility watches, it preserves the historical DNA of Seiko: legibility, reliability and excellent value for money.

An inspiration inherited from exploration watches
The HDB009 has a stainless steel case 41 mm in diameter, 13.2 mm thick and 48.5 mm long, offering an ideal balance between sporty presence and everyday comfort.
Its bidirectional rotating compass, inspired by the famous Seiko Alpinist models, allows a simplified orientation thanks to the cardinal points and the position of the sun.
The sunray brown dial, combined with the large Arabic numerals covered with LumiBrite, ensures optimal readability in all conditions.
Its brown Cordura nylon strap reinforces the authentic "field watch" spirit while offering lightness, resistance and comfort on the field.

Technical side
The HDB009 is powered by the automatic caliber Seiko 4R36, known for its robustness and ease of maintenance.
This movement operates at 21,600 vibrations per hour, has 24 jewels and offers about 41 hours of power reserve.
The watch also features manual winding, a stop-second function and a day-date display at 3 o'clock for practical use in everyday life.
Its curved Hardlex glass effectively protects the dial, while the screw-down transparent case back reveals the automatic movement in operation.
Waterproof to 10 bar (100 meters) and resistant to magnetic fields up to 4,800 A/m, it supports both outdoor activities and urban life.

In short
With its vintage military-inspired look, rugged Cordura bracelet and functional compass bezel, the HDB009 perfectly embodies the adventure spirit of the Seiko 5 Sports Field Series collection.
Versatile, reliable and designed for modern exploration, it stands out as a true tool watch accessible with an assertive character.