Color: Light Blue Luminous dial convenient for night shift work With a pulse meter useful for measuring pulse [How to Use the Pulse Meter] You can see your pulse rate per minute just by looking at the numbers. 1. Start pulse measurement from the second hand at 12 or 6! 2. The number indicated by the second hand when you count 20 times is the measurement value per minute. Saves time by eliminating the need to calculate in your head! You can also use the remaining time for respiratory measurement. Instruction manual and warranty included