Seiko 8F56 - How to Use the Rotating Bezel with 24-Hour Scale

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Ex.) IfyouareinRomeandwishtoknowthetimeofNewYork: 
① Set"ROM"onthebezeltothe24-hourhand. 
②
Readthetimethat"NYC"onthebezelpointstointhe24-hourindication. 
Rome: 17:08->5:08p.m.
NewYork: 11:08->11:08a.m.
Marks
onthebezel
GMT
ROM
IST
MOW
DXB
KHI
DAC
BKK
HKG
TYO
SYD
Greenwich
Rome
Istanbul
Moscow
Dubai
Karachi
Dacca
Bangkok
HongKong
Tokyo
Sydney
Nameofcityorarea
Marks
onthebezel
NOU
WLG
HNL
ANC
LAX
DEN
CHI
NYC
CCS
BUE
PDL
Nouméa
Wellington
Honolulu
Anchorage
LosAngeles
Denver
Chicago
NewYork
Caracas
BuenosAires
Azores
Nameofcityorarea
<Marksonthebezelandnamesofcities/areas>
Rometime:
5:08p.m.
NewYorktime:
11:08a.m.
Howtousetherotatingbezelwith24-hourscale(onlyformodelswiththe24-hourscalesrotaitingbezel)
Calculatethetimedifferencebetweenthecitywhosetimethe24-hourhandindicates
and the city whose time you wish to know. Then, by turning the rotating bezel
accordingtothetimedifference,the24-hourscaleonthebezelindicatedbythe24-
hourhandgivesthetimeofthecityyouwishtoknow.

〈Followtheformulabelowtodeterminethetimedifferenceandthedirectioninwhichtoturntherotatingbezel〉
E:Theamountofhoursanddirectiontoturntherotatingbezel
C:TimedifferencebetweenGMTandthetimethe24-hourhandindicates
D:TimedifferencebetweenGMTandthetimeyouwishtoknow
E=C-D

Intheexamplesbelow,the24-hourhandindicatesJapantime,and,therefore,C=+9. 
＊ Beforeusingtherotatingbezel,besuretocheckthatthe"24"markisatthe12o'clockpositionofthewatch. 
 Ex.a):WhenyouwishtoknowthetimeofacitybelongingtothetimezoneofGMT. 
D=0
Therefore,E=C-D=(+9)-(0)=+9
Turntherotatingbezel9hoursclockwise.
Readthe24-hourscaleontherotatingbezelwherethe
24-hourhandpointstoGMTis"1:00".
＊ IfEisapositivenumber(+)turntherotatingbezelclockwise.Ifitisanegativenumber(-)turnitcounterclockwise. 
Ex.b):WhenyouwishtoknowthetimeofLosAngels.
D=-8
Therefore,E=C-D=(+9)-(-8)=+17
Turntherotatingbezel17hoursclockwise(orturnit7hourscounterclockwise). 
Readthe24-hourscaleontherotatingbezelwherethe
24-hourhandpointstoLosAngelstimeis"17:00".
6
6
1
:
00
24Hourhand
24Hourhand
17
:
00
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