Model = BY0000-56L / H610 S060257 HST 681020280 GN-4W-S > 12G [*]
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CITIZEN has a line of "Aviation Watches" called » SKYHAWK « with
a mixed analog & digital (LCD) surface. I prefer the "Pure Analog"
Model »BY0000-56L« of the » PERPETUAL CALENDAR « - Line because it
seems to be the "Best-Of-Both-Worlds" combining mechanical beauty
of a SlideRule/Aviation Watch with Radio-/Quartz-/Solar-Technology:
CITIZEN's Model »BY0000-56L« has a mechanical surface - but it is
motorized, MICRO-PROCESSOR controlled and charged by SOLAR POWER.
( The »ECO-DRIVE TECHNOLOGY« doesn't need an exchangable battery !)
It is a RADIO Controlled QUARTZ-Chronometer also with STOP WATCH &
DATE DISPLAY. DATE CHANGE is automated, considering LEAP YEARS. A
24h-SCALE, a 24h-ALARM, as well as (easy to switch) ALL TIME ZONES
are useful additional features - also working w/o Radio Connection!
CITIZEN's Model » BY0000-56L « Surface:
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Outer Circ.Scales = SlideRule 34 mm Diameter
(C) = easy turnable by the left "8"-Knob;
Markers: LITERS, FUEL LBS, OIL LBS, IMP GAL, US GAL
(D) = fix;
Markers: NAUT, STAT, KM
(h/min) = Conversion ( e.g. 4:30 = 270 min )
Calendar = Automatic Settings ( incl. LeapYears )
WorldTime = (eg.) LAX = LosAngeles = Pacific Time
PAR = Paris = Middle-European Time
...
Sub Dials = StopWatch Minutes
(+ Power Reserve Check)
24h Watch;
( see R E M A R K [#]... )
Seconds;
(+ RadioStation Indication:
EUR = DCF77;
USA = WWVB;
JPN = JJY;
CHN = BPC
)
Crown [*] (w.Buttons A & B)
= Set (World) Time / Set Date;
Set (24h) Alarm
Hands = Hours & Minutes ( = luminous );
StopWatch = 0.2 Second Increments
Accuracy = +/- 15 Seconds per Month (w/o RadioSignal)
StopWatch = max. 1 Hour
Upper Knob(B) = StopWatch = Start/Stop/Start/ ...
Lower Knob(A) = StopWatch = Reset
(+ Check Power Reserve)
(+ Radio Reception on demand)
Power Reserve = 8 Month after full charge
Water Resistance = 20 bar
Markers : DayLight SavingTime Indication;
Signal Reception Indication;
Alarm Indication
See also : WWW.CITIZENWATCH.COM
R E M A R K S ... I love my CITIZEN ... BUT:
====================================================
[#] An irritating DESIGN FLAW (against common sense !) is made with
the 24-HOUR-DIAL. The upper half is bright, the lower half is dark
- OK - BUT the "24" (= MID-NIGHT) is on top in the BRIGHT HALF and
"12" (= NOON, DAY-TIME) is down in the DARK HALF ???
[*] A 2nd DESIGN FLAW ...
The area under the CROWN has a huge free room: Everytime I take out
my hanky, there is a possibility that the rim of my jeans pocket get
in between and pulls & turns the crown !!! This results in change of
the TIME ZONE: Therefore UNEXPECTED CHANGE OF ACTUAL TIME = OhOh!
After END OF 5 YEAR WARRANTY in 2016, this unwanted wear-and-tear
made the axle locked and broke. CITIZEN was not willing to sell a
new axle to my repair shop: "REPAIR" by CITIZEN/USA was made for
365 US$ in exchange for a NEW CASE with a NEW_ID on its back side.
May be the reason why THIS MODEL IS DISCONTINUED ???
***
... As joked in ../SlideRules/BREITLING...
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In addition to using the SLIDE RULE for multiplication & division,
it is a "NAVIGATION COMPUTER". Pilots may perform all calculations
a flight plan requires: Ground speed, miles per minute, gasoline
consumption, rate or distance of climb or decent and conversion
of nautical and statute miles.
BUT: In most cases the Co-Pilot has to hold the Magnifying Glass &
the FlashLight when the Pilot adjust the SlideRule ...
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Have a look at the DISCUSSION ...
" CITIZEN vs. BREITLING "
impressum:
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© C.HAMANN http://public.BHT-Berlin.de/hamann 04/19/17
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