Arnold & Son presents the Tourbillon Chronograph: the Royal TEC1; In honour of their 250th Anniversary: Arnold & Son’s new timepiece that underscores its commitment to Haute Horologerie finishing: hand-chamfered bridges with polished edges, fine circular graining and Côtes de Genève rayonnantes, all chronograph levers are satin-finished with hand-chamfered and polished edges, circular satin-finished wheels, and blued screws with bevelled and mirror-polished heads. The highlight of each watch is a red gold skeletonised rotor with brushed surfaces and chamfered polished edges. The Limited Edition 250th anniversary piece is crafted in red gold case and features a stunning blue lacquered guilloché dial. The Strap is in hand-stitched brown or black alligator leather.