Seiko SPB531J1 with automatic mechanical movement, caliber 6R35 with 41-hour power reserve, 24 jewels.

Stainless steel case, diameter 39.5 mm, thickness 13.2 mm, width 46.4 mm.

Screw-down crown and back, unidirectional rotating bezel. Swiveling inner compass ring.

Domed sapphire crystal, internally coated for anti-reflection.

Calfskin leather strap, snap-fastening deployant clasp.

Blue dial with gold-plated lumibrite hands and markers for viewing in the dark. Seiko logo at 12 o’clock, date window at 3 o’clock with magnifying glass.

Limited Edition.

Watch accompanied by Seiko warranty and packaging.