180 YEARS OF
180 YEARS OF
180 YEARS OF
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The new Longines<br />
Avigation Type A-7<br />
with Cal. L788.2<br />
Elapsed Time | CHRONOGRAPHS<br />
The NEWEST<br />
VARIATION of<br />
Cal. L688.2 is<br />
called L788.2.<br />
tened the 13¼-lignes movement with automatic winding,<br />
a power reserve of 54 hours, and 27 functional jewels, the<br />
Cal. A08.231. Old standbys include a unidirectional ballbearing<br />
rotor, a rocking pinion clutch and the oscillating<br />
and escapement system. Its Glucydur balance and at Nivarox<br />
hairspring vibrate at a frequency of four hertz,<br />
which permits a timing accuracy to 1/8 of a second. e<br />
totalizers make it possible to record time intervals of up to<br />
12 hours. is newcomer is not viewed as a derivative of<br />
the Cal. 7750 but as a fundamentally new design. Since the<br />
load on the column wheel is distributed over six columns<br />
during on/o cycles, wear is less of a factor than with the<br />
shuttle or cam that, due to its back-and-forth action, concentrates<br />
friction and pressure solely on two points. e<br />
advantages include smoother cycles, crisp shiing action<br />
and fewer components. A high degree of serviceability is<br />
ensured with a self-regulating reset hammer for the<br />
chronograph hand and minutes totalizer. Two pushers are<br />
provided for start, stop and reset functions.<br />
e newest variation, the L788, has only one crown<br />
pusher and recalls the earliest years in chronograph<br />
history. Only <strong>180</strong> numbered anniversary pieces of the<br />
Longines Column-Wheel Single Push-Piece Chronograph<br />
<strong>180</strong> th Anniversary Limited Edition were created<br />
for the occasion. e model used for this retro chronograph<br />
hearkens back to 1913. Features indicative of the<br />
time include a white dial with a red 12 and a round case<br />
with pivoting wire-type lugs. Clearly all good and beautiful<br />
things will continue to have great appeal throughout<br />
the 21 st century. <br />
LONGINES SPECIAL WatchTime | 49