From the Essentials Collection, this Seiko chronograph is a great time - piece. It can measure up to 60 minutes of elapsed time in 1/5 - second increments. The watch features a black tachymeter ring and a dimensional embossed green dial with metallic elements and black - gray accents. There's a 24 - hour subdial and a date indicator. The LumiBrite hands and markers make it easy to read in low light. With a 41.0mm stainless steel case and bracelet, it uses a tri - fold push button release clasp. It's water - resistant to 10 bar (100 meters or 330 feet) and runs on Caliber 8T63. Style#: SSB405

Using your Seiko chronograph is easy. To start measuring elapsed time, just press the chronograph start button. You can measure up to 60 minutes in 1/5 - second increments. The 24 - hour subdial helps you keep track of the time throughout the day, and the date indicator shows the current date. When reading the time in the dark, the LumiBrite hands and markers will glow, making it visible. For maintenance, keep the watch dry when not in water. If it gets wet, wipe it dry with a soft cloth. Don't press the buttons when the watch is underwater. Also, have it serviced regularly by a professional to keep it running smoothly. Remember, it's water - resistant to 10 bar, so it can handle normal water activities like swimming, but avoid high - pressure water exposure like diving with scuba gear.