Case size (H× W× D): 49,3 mm x 43,2 mm x 13,0 mm Weight: 104 g Titanium case Screw locked back Bracelet: Titanium 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 Bluetooth® 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 Super Illuminator: At the touch of a button, the display can be brightly illuminated in a fashionable color Shock-resistant: Shock-resistant construction protects against impact and vibration Vibration-resistant Solar Power: A solar cell provides power for operation Battery level indicator Battery type: CTL1616 Radio signal reception (EU, U