A large-sized ship's chronometer.
A large-sized ship's chronometer.
An alarm on a divers' watch that sounds when the wearer exceeds a pre-set depth.
A device on a divers' watch that determines the wearer's depth by measuring water pressure. It shows the depth either by analog hands and a scale on the watch face or through a digital display.
A progressive natural change of a watch's rate with respect to objective time. In case of a watch's faster rate, the deviation is defined positive, in the opposite case negative.
Face of a watch, on which time and further functions are displayed by markers, hands, discs or through windows. Normally it is made of a brass - sometimes silver or gold.
Said of watches whose indications are displayed mostly inside an aperture or window on the dial.
A watch that is water resistant to 200M. Has a unidirectional rotating bezel and a screw-on crown and back. Has a metal or rubber strap (not leather). May have a sapphire crystal and possibly, a wet-suit extension.