Seiko SRPD81 Seiko 5 Sports Men's Watch Black 42.5mm Stainless Steel

Seiko 5 Sports

Manual and automatic winding capabilities

21,600 vibrations per hour

Power reserve: approximately 41 hours

24 jewels

Black dial and unidirectional rotating bezel

Day/date calendar

Blue LumiBrite hands and markers

Case diameter: 42.5mm

Stainless steel case with black ion finish

Black nylon strap

Water-resistant to 10 bar, 100 meters (300 feet)

Caliber 4R36