Seiko SPB501J1 mechanical automatic with caliber 6R55 movement, a frequency of 21,600 vibrations per hour and 24 jewels. Power reserve of about 72 hours.

Accuracy of about +25/-15 seconds per day.

Green dial with sea waves, gold-plated indexes and hands, treated with lumibrite for viewing in the dark. Date window between 4 and 5 o’clock. Steel rotating bezel.

Stainless steel case, diameter 40 mm, thickness 13.02 mm. Non-transparent screw-down case back and screw-down crown with Seiko logo. Width of the lugs 20 mm.

Waterproof up to 30 bar/300 meters.

Stainless steel bracelet with scratch-resistant coating, adjustable. Folding clasp with release button, very comfortable to wear.

Accompanied by special package with double strap and official Seiko 2-year warranty.