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36 x 9.5 mm stainless steel case
Band size: 18mm
ATM: 5
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Semi-Skeleton
300 watches were made
# on dial shown as N.#
ETA 2824 Elaboree movement is highly decorated and resists magnetic
and temperature changes.– automatic 25 jewel.
The standard top plate is removed and replaced with an engraved
balance bridge. The "Sapphire" crystal is very durable resisting
chipping and scratches. The screw down view back and all surfaces
are sealed to provide 150 feet deep-water resistance. Porcelainized
dial and numerals.
View back |
A word about the telemeter and tachymeter
scales:
Adding value to this watch, d.freemont makes use of a common feature
of this ETA movement. The ETA 2824 – has a hack feature (permitting the
second hand to be stopped by retracting the crown). This is a
holdover from the military watches of the Great War, which permitted
synchronizing watches between field commanders and artillery attack
planning. The sweep second hand, if stopped at the 12 o’clock
position, serves as a Semi - stop watch. There are two calibrated
scales: the telemeter from 12 o’clock to 3 o’clock, and the
tachymeter from 9 o’clock to 12 o’clock.
The telemeter scale is calibrated in miles – with this scale an
opposing artillery commander could get the gunnery range by timing
the flash of a cannon to hearing the report. For example: with the
sweep stopped at the 12 o’clock position the field commander could
start the timing by pushing the crown home the instant he would see
the flash from a cannon in the distance – then upon hearing the
report, he would retract the crown and read the calibrated scale
which would give the distance of the opposing artillery. This
feature can also be used to judge the distance of an approaching
storm by comparing lightning flashes to thunder.
The tachymeter scale is calibrated in miles per hour. The
“Semi-Skeleton” can check the accuracy of a speedometer by stopping
the second hand at the 12 o’clock position…. then, starting the
second hand by pushing in the crown just as you pass a measured
mile-post, such as those found on interstate highways. The crown
would be retracted at the instant you pass the next mile-post… the
sweep second hand would have stopped at the exact average miles per
hour traveled over the timed mile…providing an exact direct reading
in mph from the calibrated scale. |
