Seiko 5 Men's Automatic Watch SNKG13J1 Black

Classic Black Seiko 5: 7S26 21 jewels, 37mm, Exhibition Case Back

Collection

The Seiko SNKG13J1 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 reliable and low-maintenance 7S26. It features a 37mm case, 30m water resistance, and an exhibition case back to view the rotor.

Case

Made of stainless steel, the case of the Seiko SNKG13J1 measures 37mm in diameter and 11mm in thickness. The bezel is fixed. The dial is protected by a Hardlex crystal, a proprietary Seiko treatment for light scratches. The case back is exhibition (transparent), allowing observation of the movement in operation. Its water resistance is 30m, suitable for splashes and rain.

Movement

The Seiko SNKG13J1 is powered by the automatic caliber 7S26, offering a power reserve of approximately 41 hours. This movement has neither hacking (stop-seconds for time setting) 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.

Bracelet

The stainless steel bracelet of the Seiko SNKG13J1, secured by a folding clasp, complements the case coherently. The lug width is 18mm.

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