Steel Breguet Transatlantique Type XX Chronograph 4821. Case diameter 33mm water resistant to 100 meters. Automatic chronograph movement , Breguet caliber 550. Full diamond bezel with blue sapphire for the 12 markers. Mother of pearl dial with luminous numerals and applied pyramid hour markers, black printed track outer minute markers. Date display within second sweep subsiduary dial. Steel bracelet with brushed centre links and polished outer.