Seiko 5 Men's Automatic Watch SNK571J1 Black

Seiko 5 Black SNK571J1: 40-hour power reserve, 37 mm, 18 mm lug width

Collection

The Seiko SNK571J1 belongs to the Seiko 5 series, produced continuously for over six decades. It is one of the few entry-level automatics to rely on an in-house caliber: the 7S26, reliable and low-cost to maintain. 37 mm case, 30 m water resistance, exhibition case back to observe the rotor.

Case

Made of stainless steel, the case of the Seiko SNK571J1 measures 37 mm in diameter and 11 mm in thickness. The bezel is fixed. The dial is protected by Hardlex glass, Seiko's proprietary treatment for light scratches. The case back is an exhibition (transparent) type, allowing observation of the movement in operation. The water resistance is 30 m, suitable for splashes and rain.

Movement

The Seiko SNK571J1 is powered by the automatic caliber 7S26, offering a power reserve of approximately 41 hours. This movement does not feature hacking (stopping the second hand for time setting) or manual winding—two functions intentionally absent from this entry-level caliber. Its accuracy oscillates around ±15 seconds per day, which is expected for an automatic movement in this segment.

Bracelet

The stainless steel bracelet of the Seiko SNK571J1, secured by a deployant clasp, complements the case coherently. The lug width is 18 mm.

Supplied with: Storage box, presentation pad, user manual.