The year 2024 marks the 70th anniversary of the GMT function in the world of watchmaking. To celebrate this occasion, DENA Watch of Switzerland is unveiling its brand-new GMT +30 minutes regulator tourbillon. In some parts of the world, such as India, Australia and Venezuela, time differences mean that time zones have to be displayed with an extra 30 minutes, a function that no watch brand has yet achieved. DENA has risen to the challenge with its GMT +/-30-minute tourbillon regulator. DENA Watch Tourbillon GMT regulator 100 % SWISS MADE, one-piece 44 mm case and dial with 169 VVS1 diamonds set in a firmament on the bezel.