SEIKO PROSPEX SEA SRPB51
Manual and automatic winding capabilities
21,600 vibrations per hour
Power reserve: approximately 41 hours
One-way rotating elapsed timing bezel
LumiBrite hands and markers
Screwdown crown and caseback
Case diameter: 44.0mm"
Stainless steel case and bracelet
Water-resistance: Diver's Watch to 200 meters (660 feet). Meets ISO standards and is suitable for scuba diving.