HEUER Military Flyback Chronograph Bundeswehr 'Sternzeit Reguliert'
Ref. 1551 SG SZ
Military Serial # 6645-12-148-2298
Reference No.: 1551 SG SZ
Movement: Valjoux 230, Hand-wound mechanical flyback column-wheel
chronograph movement, 36h power reserve, 17 jewels, Incabloc-shock
Dial: Black Dial with Heuer logo,
Sternzeit Reguliert and small T over the 6, luminous deco numerals,
subsidiary seconds at 9 o’clock and 30 minute chrono counter at 3
Case: 43mm, large sized steel with sandblast finish
with black PVD coated aluminum bi-directional 60-min bezel, Glass in
Caseback engraved with NATO code 6645-12-148-2298 plus
engraving due to it’s military use.
Strap: Leather bund strap
Condition Report: very good condition
Wehr means ‘Federal Defence’ in German. This military flyback
chronograph, introduced by Heuer in 1968, is an iconic vintage
wristwatch associated with the German military. This watch has the
word “Bundeswehr” followed by the military serial number, The
Sternzeit Reguliert version was used by artillery corps and used
charts to calculate sidereal time.
Since this is a flyback
chronograph, the mechanism can be reset while it is still running,
making it particularly useful for servicemen timing consecutive
short interval events. The beauty in this mechanism is when the
reset button is pressed, the flyback lever lifts the coupling clutch
from the chronograph center wheel allowing the mechanism to reset.