CITIZEN QUARTZ TACHYMETER WATCH AD6082-01PZ
6100-S15877
Citizen Watch Company 6100A Japan movement 1980's
Brand new old stock, never worn
Watch and strap both 100% original
Champagne colour dial with 3 florescent hands and day/date at 3 o'clock
Watch b
ack matte stainless steel with polished edges
Watch case polished gold tone base metal
Brown leather strap with white side stitching stamped 'Citizen 18' with gold tone buckle
No marks at all, absolutely as new, not bad for a watch which is around 30 years old
New Swiss Renata battery fitted, watch fully working
Case measures 39mm x 40mm incl lugs and crown
Measures 23cm (9") end to end. Will fit up to a 20cm (8") wrist.
Citizen Quartz instruction manual, CTZ-6618
Fantastic retro addition to any collection and this hard to find Citizen classic will surely appreciate.
No box but will be well packed.
A
tachymeter
scale is a scale sometimes inscribed around the rim of an
analog watch.
It can be used to compute a speed based on travel time or measure
distance based on speed. The spacings between the marks on the
tachymeter dial are therefore proportional to 1/t where t is the elapsed
time.
The function performed by a tachymeter is independent of the unit of distance (e.g.
statute miles, nautical miles,
kilometres, metres etc.) as long as the same unit of length is used for
all calculations. It can also be used to measure an industrial
production process in units per hour. A tachymeter is simply a means of
converting
elapsed time in seconds per unit
to
units per hour
.
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