The Swatch Travel By Day SB03B108 watch combines a 47mm round shaped matte black bio ceramic case and blue silicone rubber strap with an aluminium traditional buckle. It has a black skeleton analogue dial with luminescent hands which are protected beneath a bio-sourced glass. Power is generated by the quartz movement. This model also has a water resistance of up to 30 metres. Case Depth Approx. 11.75 mm.