Omega SA 1120, 2520, 2500, 1538, 1400, 1532, 1108, 1680, 1424, 1530 manual Xviii

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Small second Petite seconde Pequeño segundero Kleine Sekundenanzeige Piccoli secondi

Hours counter Compteur heures Contador de horas Stundenzähler

Contatore delle ore cronografiche

Minutes counter Compteur minutes Contador de minutos Minutenzähler

Contatore dei minuti cronografici

Chronograph seconds

Seconde chronographe

Segundero de cronógrafo

Chronographsekunde

Secondi cronografici

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XI

XVIII

XIX

XII

XIII

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XV

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Contents
Operating Instructions Viii Xviii Contents Special recommendations What are the service intervals?Leather straps Environmental protectionScrew-in crown Anti-reflective treatmentValid for U.S.A. only Omega International WarrantyOmega SA Rue Stämpfli 96, 2500 Bienne Omega International Warranty Above manufacturer’s warranty Calibres 1424, 1538 fig Quartz WatchCalibres 1376, 1456 fig Calibres 1426, 1530, 1532 figTime setting by pressing the corrector Calibres 1424Calibre 4000 fig. IIbis Chronograph functions Quartz chronographCalibre 1270 fig Watch functionsPusher a Start stop read time Pusher B ResetCalibre Simple timing function crown in positionPusher a Stop Addition function crown in positionPusher a Start Pusher a Stop to read time Pusher a Press again to restartPower reserve cal Counter at 9 o’clock small seconds Manual & Self-winding watchCalibres 1120, 2500, 2520, 2610 fig 2627 fig. III 2300 fig Power reserve Crown has 2 positionsCalibre 2201 Manual-winding Regatta function cal Pusher B reset after a stopSelf-winding chronograph Calibres 3205 fig. XV 3220 fig. Xiii 3601Regatta function Apnea function calApnea function based on a 14 minute dive Calibre 1151 fig Self-winding chronograph with dateCalibre 3304 fig Changing the date press the corrector C at 10 o’clockWatch functions calibre Self-winding split seconds chronographChronograph functions with split seconds Self-winding split seconds chronographCalibres 1861, 1863 fig. XV 1866, 3604 fig Manual-winding chronographDate setting small counter at 12 oclock press corrector C Calibre 1866-Date and moon phase correctionThermocompensation Setting the hands minutes and secondsPerpetual calendar Calibre 1680 figDisplay and correction of the month Display and correction of the yearly cycle Calibres 1128 fig. VI 2628 fig 3603 fig Self-winding GMT & GMT ChronographSelf-winding GMT & GMT Chronograph Second Time Zone calibre 2628, fig. VII, calibre 3603, fig Coincide with a given time signalSecond Time Zone calibre 1128, fig Bi-directional turning bezel calibreDays 14,15 Position Temperature 23C Days Position Temperature 23CQuartz watches Precision tolerances32 -1 to +6 seconds per day Other Omega mechanical watchesHelium escape valve Helium escape valve figPressure is gradually increased to Not functional, since it is screwed How to use the helium escape valve figUsing the tachymetric scale Tachymetric scaleExample calculating the speed of a car Rubber strap Rubber strap Closing Adjusting the lengthFoldover clasps Snap-fastening foldover clasps OpeningAdjusting the length fig Foldover clasps with pushers Opening figClosing fig Pictograms
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