
Accessible Japanese Automatic: Seiko 5 SNKK07J1, 37mm, White Dial
Collection
The Seiko SNKK07J1 belongs to the Seiko 5 series, which has been produced continuously for over six decades. It is one of the few entry-level automatics to rely on an in-house movement: the 7S26, which is reliable and low-cost to maintain. 37mm case, 30m water resistance, exhibition case back to observe the rotor.
Case
Made of stainless steel, the case of the Seiko SNKK07J1 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. The water resistance is 30m, suitable for splashes and rain.
Movement
The Seiko SNKK07J1 is powered by the automatic 7S26 caliber, 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 oscillates around ±15 seconds per day, which is expected for an automatic movement in this segment.
Bracelet
The stainless steel bracelet of the Seiko SNKK07J1, secured by a deployant clasp, complements the case coherently. The lug width is 18mm.
Specifics
Housing
Dial
Bracelet
Other features
Supplied with: Storage box, presentation pad, user manual.
Choose options



Free shipping
2-year international warranty