To celebrate the 150th Anniversary of TAG Heuer, the firm has created this “in-house” column-wheel automatic caliber.

It features an oscillating pinion with optimized chronograph start (2/1’000 sec.). The annular balance has 3 arms made of Glucydur, and features a “Top” quality Swiss balance-spring with micro blazed finishing, Raquetterie with fine adjustment by eccentric screw, which leads to an average accuracy of +/- 4 seconds per day.

It measures 29.3mm (13 lignee) wide x 7.1mm in height. It has 39 jewels, beating at 28,800 bph and with a power reserve of 50 hours (40 hours with the chronograph engaged).

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