Swiss watchmaker Oris introduced the world’s first mechanical wrist watch with integrated barometric altimeter (altimeter) – Big Crown ProPilot Altimeter. New pilots addressed, climbers, researchers, word, all those whose work or hobby is connected with height.
Watch Big Crown ProPilot Altimeter presented in two versions: with markings in meters and feet markings.
Round watch case diameter of 47 mm made of steel. With a high level of resistance to water (up to 100 meters), this watch will be useful not only in height, but under water. Note that there are two winding heads: first – to “2 hours” with engraved brand name for a patented screw head control altimeter “4 hours” engraved «ALT SET».
So, how this function works. To activate the altimeter must install control head altimeter to “1” (unscrew the head until the red ring). When the crown is pulled out to position “2”, you can calibrate the altimeter. Once installed, the clock shows the current altitude using a yellow indicator, red LED will show the air pressure. On the periphery of the dial you can see the markup altitude.
This rate may be measured in the range from 0 to 15,000 feet or from 0 to 4500 m (depending on the variant model). Scale air pressure recessed between altimeter and the central part of the dial. If you measure the height of unnecessary head can be turned to position “0”.
Little about other characteristics of the model. Grooves on the bezel give the model a brutal appearance. Sapphire crystal with anti-reflective coating protects the dial matte black with Arabic numerals, hour and minute hands coated with fluorescent compound. Inside the clock mechanism installed Swiss Oris 733 (based on the Sellita SW200) Automatic power reserve of 38 hours. Hours can be textile or leather strap, steel bracelet.