Hand and automatic winding capabilities Power reserve: approximately 41 hours LumiBrite hands and markers Black ion finish with black silicone strap Water-resistant to 20 bar, 200 meters (660 feet) 21,600 vibrations per hour 23 jewels One way rotating elapsed timing bezel Date calendar Screwdown crown and caseback 44.0 diameter Caliber 4R35 3 year warranty on manufactory defects First year world wide warranty, 2nd and 3rd year only for USA