Seiko SNKP17

The Seiko reference SNKP17 has a steel case measuring 42.3 mm across. The case measures 11.3 mm thick, with a water-resistance rating of 50 metres. The movement is self-winding calibre 7S26, which contains 21 jewels and has a power reserve of approximately 40 hours. The watch has a Hardlex crystal. The clasp has a three-fold construction with a push-button release mechanism. The dial has LumiBrite on the hands and indices. The case has a lug width of 22 mm. The movement is visible through the display back of the case.