Product Brand: Tianfu

product Model: PC-2810 [double row 10 channels]]

product Size: 85*63 * 22.0MM

product Packing: 67.3*31.4 * 43CM/200PCs

product Features
10 runway stopwatch

1/100 seconds stopwatch, can last for 9 hours 59 minutes 59.99 seconds
2 lines, 16-digit large digital LCD display, word height: 9.4mm
12/24 hour display
segment, total segment, and continuous time display
the fastest, slowest, and average lap speeds can be displayed.
  Countdown, up to 10 hours
  time and calendar
  waterproof structure (rainwater proof and sweat)
  CR-2032 button lithium battery, imported from Japan