The Grönefeld One Hertz, is the brand’s second complicated mechanical timepiece ever created. It’s powered by an in-house calibre movement that has the basic watch’s functions plus Power reserve is indicated at 12 o’clock. But the real highlight of this watch is the deadbeat seconds, which is indicated by the large off-centre sub-dial, making this watch, the world’s first mechanical timepiece with independent deadbeat seconds. TBA.

The Grönefeld GTM-06 Tourbillon Minute Repeater wristwatch is the most complicated wristwatch ever created in The Netherlands. It was created by Bart and Tim Grönefeld. It is a tourbillon with minute repeater complication. The Netherlands based watchmakers have been working on the GTM-06 for 4 years. It is available in a limited edition of 10 pieces in 18kt yellow gold (325,000 Euros) and 10 in platinum (385,000 Euros).