Case size (H× W× D): 51,9 mm x 50,9 mm x 13,2 mm Weight: 115 g Case / bezel material: Stainless steel carbon case Band: Resin Bluethooth Smart: The watch is equipped with energy-saving Bluetooth® technology, which offers power-saving data transfer at the push of a button. The watch can connect to a smartphone wirelessly via Bluetooth®, enabling access to a wide range of useful functions Smartphone time: Local time will automatically be adjusted whenever the watch is connected with a smartphone Water resistance: 200-meter water resistance (Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810) Sapphire glass Solar Power: A solar cell provides power for operation Super illuminator: At the touch of a button, the display can be brightly illuminated in a fashionable color Shock-resistant Radio signal reception (EU, USA, Japan, China) World time function: Displays the current time in major cities and specific areas around the world Date