TAG Heuer Calibre 360 Concept Chronograph Protype

A Grade 5 titanium prototype two train chronograph wristwatch with 1/100th seconds, 10-minute register and power reserve

Manufacturer: TAG Heuer Year: Circa 2005 Case No: Calibre 360, No. 1/1 Model Name: Calibre 360 Concept Chronograph Protype Material: Grade 5 Titanium Calibre: Automatic, cal. 360 Bracelet/Strap: Tag Heuer rubber Clasp/Buckle: Stainless steel Tag Heuer deployant clasp Dimensions: 41.5mm Diameter Signed: Case, dial and movement, case further signed Antiquorum Auction, Geneva, November 2005 Tag Heuer launched their Calibre 360 chronograph wristwatch at Basel in 2005 with much fanfare, becoming the first mechanical movement capable of 1/100th seconds accuracy and display. Constructed with two trains, the tandem winding chronograph oscillated at 360,000 beats per hour and could be engaged without interfering with the watch movement. The manually wound chronograph featured a 100-minute power reserve aperture on the dial, with the going train was wound through the crown or rotor. The crown was moved in clockwise direction to wind the chronograph and in an anti-clockwise direction to wind the watch movement. Following introduction of the watch in 2005, Tag Heuer released the rare Vanquish Calibre 360 Chronograph 1/100th. Produced in limited number of 12 timepieces the watch featured Grade 5 titanium (Ti5), developed in association with McLaren, a metal that can be polished. The Vanquish would lead to the later development of the Grand Carrera and Mikrograph timepieces. The present Grade 5 titanium prototype was sold at international auction in 2005 with the proceeds benefiting the Geneva Musée de l'horlogerie.