Power Reserve This indicates how much power is left in a watch. It features the month, day, date, year, and even takes leap year into account. Perpetual Calendar This is the most complex calendar available on a watch. Moonphase Although this keeps track of the current phase of the moon including full, half, quarter, and new moon sailors used it originally to gauge tides. Cyclops The cyclops is a small lens on the crystal of a watch and its purpose is to magnify the date. This window can indicate dates, moon phases, or other information for that particular style of watch. It moves only in a counter-clockwise direction and as a result, helps a diver time how much air they have left in their tank.Īperture This is a small cutout window within a dial that indicates specific information other than time. Unidirectional Rotating Bezel This is the functional part of a dive watch that helps track air supply. Some also allow the user to measure distance. Tachymetre This is a feature on a watch that allows the user to measure speed. Most mechanical watches have a sweeping seconds hand.
Sweeping Seconds Hand Instead of jumping with every tick, a sweeping seconds hand moves smoothly across the dial or subdial. It tells information that isn’t provided by the main dial, such as dates or seconds. Subdial Sometimes a smaller dial is inside the main dial. Pusher This is an attachment to the case that would control the watches functions, such as a date adjustment or chronograph. While luminosity is cool-looking, it also serves a function, allowing the wearer to see in murky or dark spaces like the deep water or night skies. Watchmakers use a specific material to create this luminous effect. Luminosity Many watches have hour markers and hands that glow-in-the-dark.
TIMEPIECE DRAWINGS PROFESSIONAL
Helium Release Valve This valve is for professional divers and helps release the trapped gas that builds up in a watch during prolonged dives of 250ft or more, specifically saturation diving. The pushers on the side are a good indicator that a watch is a chronograph watch. Signature This is the manufacturers information on the dial of the watch.Ĭhronograph A chronograph is stop-watch. Lug These are projections on the watch case that secure the strap or watch bracelet to the case. Hour Marker These are the indicators on the face of a watch that mark out the hours. Most watches have at least three hands to show hours, minutes, and seconds. Hand The hands are the markers on the dial that indicate time. It can come in several different colors and marker combinations. The majority of modern Swiss timepieces have a sapphire crystal.ĭial Also known as the face, the dial is the portion of the watch that displays the time. This is designed to protect the watch from dirt and water and reduce glare.
Crystal This is the transparent cover on the top of the dial or face. They come in several different shapes and materials.Ĭrown This is a knob on the outside of a watch case that sets the calendar and time. This protects them from normal wear and tear as well as the elements. Case The case is the part of the watch that contains the movement and dial. In order to be considered a bracelet, the band must be made of metal. Bracelet or Strap These are the bands that secure a watch to a wrist. Bezel The bezel goes around the crystal of a watch are usually made of metal or ceramic.
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