Breguet Chronograph Type XXI 3810 specifications

TYPE XXI
FLYBACK
SPECIFICATIONS OF THE CHRONOGRAPH
REF. 3810ST/92/9Z6

Case : round, in steel, with fluted caseband.
Roundended horns.
Two-way rotating bezel with 60-minute
scale. Screw-locked crown.
Water-resistant to 100
metres (approx. 300 feet).
Dial : in black-rhodium, bearing the BREGUET
signature. Luminous hands and hour -markers.
Chapter-ring with Arabic numerals Centre elapsed-minutes register.
Day/night indicator at 3 o’clock. 12- hour counter at 6 o’clock. Small second at 9 o’clock.
Date calendar in an aperture at 6 o’clock.
Movement : self-winding, 13¾-line, numbered and bearing the BREGUET signature.
Cal. 582Q. 25 jewels.
Lever escapement, monometallic balance wheel.

Adjusted in 5 positions.

The « fly-back » function returns the chronograph hands to zero at a touch of the lower button. The chronograph then restarts immediately from zero. Without this function, three separate operations would be necessary to achieve the same result.