From the Essentials Collection Chronograph measures up to 60 minutes of elapsed time in 1/5-second increments Black tachymeter ring Dimensional embossed green dial with applied metallic elements and black and gray accents 24-hour subdial Date indicator LumiBrite hands and markers Case diameter: 41.0mm Stainless steel case and bracelet Tri-fold push button release clasp Water-resistant to 10 bar, 100 meters (330 feet) Caliber 8T63