Omega 2503.80.00 User Manual

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English
Introduction
– Special recommendations ........................... 4
– Environmental protection ........................... 5
– Leather straps .................................. 6
– Anti-refl ective treatment ........................... 6
Screw-down crown ............................... 6
OMEGA International Warranty ...................... 7
Operating instructions
Quartz watch
Calibres: 1376, 1424, 1426, 1456, 1530, 1532, 1538 ......... 11
4000 ................................. 12
4600 ................................. 13
Quartz Chronograph
Calibres: 1270 ................................. 14
5200 ................................. 15
Manual & Self-winding watch
Calibres: 8500, 8501, 8601, 8611 ...................... 17
1120, 2300, 2500, 2520, 2610, 2627, 8520, 8521 ...... 18
2005, 2006, 2007, 2200, 2201, 2202, 2403, 8401, 8421 . . 20
Manual-winding chronograph
Calibres: 1861, 1863, 1866, 3200, 3201, 3203, 3604 .......... 21
Self-winding chronograph
Calibres: 3202, 3205, 3220, 3601, 3602 ................. 23
Self-winding chronograph with date
Calibres: 1151, 1152, 1164, 3301, 3303, 3304, 3313, 3606,
3888, 3890 .............................. 25
Self-winding split-seconds chronograph
Calibres: 3600, 3612 .............................. 27
Perpetual calendar
Calibre: 1680 .................................. 29
Self-winding GMT & GMT Chronograph
Calibres: 1128, 2628, 3603 .......................... 32
Precision tolerances
– Mechanical watches/Quartz watches .................... 35
Specifi c sections/general information
– Helium escape valve .............................. 37
– Measurement scales .............................. 39
– Foldover clasps .................................. 41
Ploprof bezel and crown ............................ 43
– Pictograms .................................... 44
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