Type XXI
Flyback
Description of the chronograph
Ref. 3810ST/92/9ZU
Round steel case with fluted middle. Rounded attachments. Bidirectional rotating bezel with 60-minute graduation. Screw-down crown. Water-resistant to 100 meters.
Black rhodium dial signed Breguet. Luminescent hands and indexes. Hour circle with Arabic numerals. Minute totalizer in the center. Day-night indicator at 3 o’clock. 12-hour counter at 6 o’clock. Small seconds at 9 o’clock. Date window at 6 o’clock.
Self-winding movement. 13¾ lines. Numbered and signed Breguet. Cal. 582. 25 jewels. Anchor escapement. Monometallic balance. Adjusted in 5 positions.
The “return in flight” function allows the chronograph hands to be reset to zero by simply pressing the lower pushbutton. The chronograph then immediately restarts for a new count. Without the “flyback” function, three operations would be necessary for this operation.