Corum Bridges Golden Bridge Ceramic Case Watch. This watch is 34mm x 51mm in Black Ceramic and 5N 18K red gold Movement and Crown. The watch is 11.35mm thick, transparent back with glare proof sapphire crystal, black ceramic bezel, clear dial and caliber co 113 hand-wound movement. It is on a black Crocodile Strap and has a power reserve of approximately 40 hours. This piece has never been worn.