| 摘要 |
PURPOSE: To provide a water depth measuring device which is fit to incorporated in a diver watch or the like, safe and has fewer measurement errors. CONSTITUTION: A diver watch comprises an electronic timepiece body 2 and a pair of arm bands 3A, 3B attached to the direction of twelve and six o'clock therein. An indication face 4A of a liquid crystal indication panel 4 is positioned on the surface of the body 2. A number of external operation switches 5A, 5B, 5C, 5D are attached to the circumference of the body 2, and the indication face 4A is provided with a graphic indication area 4B for indicating change of water depth with time elapse, an indication area 4C for changing over and indicating time, water depth or the like and an indication area 4D for indicating a change rate of the water depth together with the direction of the change. Detection output of a pressure sensor 6 is digitized, processed in a built-in electronic circuit, and the water depth is calculated. |
