T

• Tachometer

  A feature found on some chronograph watches which measures the speed at which the wearer has travelled over a measured distance. 

• Tantalum

  A rare, hard, blue-gray, lustrous metal, tantalum is highly corrosion-resistant and occurs in the mineral tantalite.

• Telemeter

  A telemeter determines the distance of an object from the observer by measuring how long it takes sounds to travel that distance.  Like a tachometer, it consists of a stopwatch, or chronograph and a special scale, usually on the outermost edge of the watch face.

• Timer

  An instrument used for registering intervals of time without any indication of the time of day.

• Titanium

  A metal that is light, strong, lustrous and corrosion-resistant (including resistance to sea water and chlorine) with a white-silvery metallic colour. It is also hypo-allergenic.

• Time zone

  A watch which displays or has the functionality to inform you of the time in two different places with different time zones. 

• Tonneau

  A tonneau shaped watch is one shaped like a barrel, with two convex sides.  In watchluxus, this shape is considered a 'rectangular'.  

• Topaz

  Topaz is a gemstone which when no impurities are present, is transparent. However, usually it is tinted with impurities which result in the mineral being white, grey, green, blue, red pink or reddish-yellow.

• Tourbillon

  A tourbillon is a type of watch escapement that is designed to counter the effects of gravity.  This is accomplished by mounting the escapement in a rotating frame, so that the effect of gravity cancels out when the escapement is rotated 180°.  In a tourbillon, the entire escapement assembly rotates.

  The tourbillon is considered to be one of the most challenging of watch mechanisms to make and is valued for its engineering and design principles. In modern watch designs a tourbillon is not required to produce a highly accurate timepiece. Nevertheless, the tourbillon is one of the most valued complications of collector's watches and premium timepieces.