Grönefeld GTM, a Tourbillon Minute Repeater, maybe one of the most coveted and luxurious timepieces ever built, was created by the Grönefeld brothers after four years of development and research following extensive trainings in Switzerland.
in a limited edition of only 10 gold models (325,000 €) and another 10 platinum pieces (385,000 €).
Its history began in 1912 in the town of Oldenzaal, Netherlands.The family heritage that started with Joseph Gronefeld is continued
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