Seiko 5 Men's Automatic Watch SNK563J1 Blue

Classic Blue Seiko 5: 7S26 21 Jewels, 37mm, Exhibition Caseback

Collection

The Seiko SNK563J1 belongs to the Seiko 5 series, which has been in continuous production for over six decades. It is one of the few entry-level automatics to rely on an in-house caliber: the 7S26, which is reliable and inexpensive to maintain. It features a 37mm case, 30m water resistance, and an exhibition caseback to observe the rotor.

Case

Made of stainless steel, the case of the Seiko SNK563J1 measures 37mm in diameter and 11mm in thickness. The bezel is fixed. The dial is protected by Hardlex glass, a proprietary Seiko treatment for light scratches. The caseback is an exhibition (transparent) type, allowing observation of the movement in operation. The water resistance is 30m, suitable for splashes and rain.

Movement

The Seiko SNK563J1 is powered by the automatic caliber 7S26, offering a power reserve of approximately 41 hours. This movement has neither hacking (stop-seconds for setting time) nor manual winding — two functions intentionally absent on this entry-level caliber. Its accuracy hovers around ±15 seconds per day, which is expected for an automatic movement in this segment.

Strap

The stainless steel strap of the Seiko SNK563J1, secured by a folding clasp, complements the case with coherence. The lug width is 18mm.

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