Breitling ChronographWhat Is a Chronograph?A chronograph is a fine precision stop watch always ready to measure elapsed time accurately to a fifth of a second. The OW precision chronograph is made for men of action. It is rugged, accurate and easy to operate. It has many' extra features usually not found in other chronographs.How to use a Chronograph?Computes MPH over course of a measured mile: Start large second hand at beginning of measured mile. Stop hand at end of measured mile. MPH is computed on the tachometer scale on dial of watch.Computes 12-Hour Record for Pilots: Elapsed time is indicated by reading scale at bottom for hours, scale at right for minutes, and large second hand for seconds. Computes Elapsed Time, TV Commercials, Sports Events, Flying Time, Industrial Operations: By pressing button above winding stem, the large second hand is set in motion. Press same button again to stop it. By pressing once more, the large second hand starts moving again from point at which it was stopped. Complete turns of large second hand around the dial (one minute) are computed on the small scale at right up to a maximum of 12 hours. When timing operation is completed, all hands of recorders are returned to zero by pressing button below winding stem. Computes Amount of Compressed Air Remaining: Suppose you have 30 minutes of air left in tank before diving and the time is 12 o'clock. Line up triangle of moveable bezel with the #6 on the bottom scale. When minute hand reaches the #6 position, your air supply is gone. Warning: Always allow sufficient air for safe surfacing. Computes Pulse and Respiration Rate: (Invaluable to doctors and nurses). Place finger on pulse, start large second hand, and immediately start counting pulse beat. When second hand reaches 15, stop second hand and multiply pulse count by 4 for minute count. Computes Underwater Elapsed Time for Skindivers: Before diving, line up triangle on moveable bezel with minute hand. When submerged, elapsed time will be recorded in minutes on the moveable bezel. Computes Yacht Racing Time: See red segment on right side of watch face. At sound of 5-minute warning, press start button. Timer computes from 5 to 0 minutes. Stop by pressing same button, return to zero by pressing button below winding stem. |
