Oris watch aquis chrono depth gauge oris watch aquis chrono depth gauge striving for excellence once again the pioneering experts at oris watch company remain at the forefront of mechanical watch making prowess with the depth gauge from the unbeatable aquis collection a breakthrough in technology was unveiled when oris first produced the depth gauge with an in built depth measurer secured into the top glass the engineers at oris watches have cleverly applied the boyle marriotte law to their