Manual Winding movement with 72-hour power reserve in a titanium case and titanium bracelet ( case size 42.5mm by 41.5mm. Charcoal grey openwork dial with silver-tone hands and stick hour markers. Minute markers around the outer rim. Scratch-resistant sapphire crystal. Screw-down crown. Skeleton case back. Water-resistant at 50 meters / 165 feet. BOX & CERT DATED AUG 2015.