The watch disclosed has a case of ovoidal shape, wherein a circular watch movement is arranged off-center, on the side of the end of the case with the larger radius. A mixture of hydrocarbons, H2, andor other formation fluids may be produced from the formation. The controller is configured for selectively steering the body to an engagement enabling position spaced with respect to the receiver aircraft and for aligning the boom axis in an engagement enabling orientation at the spaced position, and for subsequently moving the boom member along the boom axis towards the receiver aircraft for enabling fuel communication therebetween.