Breguet Type XX - XXI - XXII 3817 Watch - 3817ST/X2/3ZU 43.0 it's an heirloom

it's an heirloom

80 mm stainless steel case

screwed in back

white gold applied hour-markers

It is perfectly set within a 43mm polished steel case featuring a fixed bezel with ceramic blue aluminium ring and silver tachymeter scale

Breguet Type XX - XXI - XXII 3817 Watch - 3817ST/X2/3ZU 43.0 it's an heirloom42mm stainless steel case with a delicately fluted caseband, 15. 2mm thick, transparent back, screw locked crown, bidirectional rotating bezel, slate grey dial with luminescent Arabic numerals, day night indicator at 3 oclock, 12 hour totalizer and date at 6 oclock, small seconds at 9 oclock, central minute totalizer, luminescent hands and dots, Cal. 584Q 2. 131 2 self winding chronograph movement with flyback function, approximately 48 hours of power