| 摘要 |
Timepiece, particularly of the wristwatch (1) type, forming a navigational aid for aviators or navigators, characterized in that it includes at least two concentric bezels (38, 46), at least one (46) of which rotates, one of said bezels (46) bearing first indications (48) corresponding to the speed of an aircraft, or respectively a boat, and the other (38) bearing indications (50) relating to the heading correction to be applied in the event of a crosswind, a nomogram (58) for the heading correction calculation being added to the back of the watch (1) or to a separate card.
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