Case size (H× W× D): 49,8 mm x 44,4 mm x 12,8 mm Weight: 165 g Solid stainless steel case (The solid stainless steel watch case provides a valued and robust quality) Screw locked back Bracelet: Stainless steel 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) Mineral 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 Double Illuminator: Both the digital and analogue areas of the watch face glow when the EL backlight is turned on Shock-resistant: Shock-resistant construction protects against impact and vibration Vibration-resistant Solar Power: A solar cell pro