Galahad's fascination is evident and endearing; Nightingale finds himself wanting to explain, to teach. "This type of watch runs purely on kinetic energy - each morning or evening, you wind the dial on the side until you feel resistance as a spring inside is coiled. The uncoiling creates enough energy for the cogs and wheels to turn precisely, keeping track of each second." He demonstrates the winding with a smile. "This one can be yours if you want it."